NIU / Niu Technologies - Depositary Receipt (Common Stock) - Документы SEC, Годовой отчет, Доверенное заявление

Niu Technologies - Депозитарные расписки (обыкновенные акции)
US ˙ NasdaqGM ˙ US65481N1000

Основная статистика
LEI 549300NJKNSC80EVQ065
CIK 1744781
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Niu Technologies - Depositary Receipt (Common Stock)
SEC Filings (Chronological Order)
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August 11, 2025 EX-99.1

Niu Technologies Announces Unaudited Second Quarter 2025 Financial Results -- Second Quarter Revenues of RMB 1,255.7 million, increase 33.5% year over year -- Second Quarter Net Income of RMB 5.9 million, compared to net loss of RMB 24.9 million in t

Exhibit 99.1 Niu Technologies Announces Unaudited Second Quarter 2025 Financial Results - Second Quarter Revenues of RMB 1,255.7 million, increase 33.5% year over year - Second Quarter Net Income of RMB 5.9 million, compared to net loss of RMB 24.9 million in the same period of last year BEIJING, China, August 11, 2025 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading

August 11, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-386

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-38696 NIU TECHNOLOGIES Building C, Rongxin Technology Center, No. 34 Chuangyuan Road, Chaoyang District, Beijing 100012 People’s Republic of China (Addre

July 7, 2025 EX-99.1

Niu Technologies Provides Second Quarter 2025 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Second Quarter 2025 Sales Volume Update BEIJING, China, July 04, 2025 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provided its sales volume results for the second quarter of 2025. 2Q 2025 2Q 2024 1H 2025 1H 2024 China Market 318,719 207,552 501,784 317,667 International Mark

July 7, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number: 001-38696 NIU TECHNOLOGIES Building C, Rongxin Technology Center, No. 34 Chuangyuan Road, Chaoyang District, Beijing 100012 People’s Republic of China (Address

May 19, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-38696 NIU TECHNOLOGIES Building C, Rongxin Technology Center, No. 34 Chuangyuan Road, Chaoyang District, Beijing 100012 People’s Republic of China (Address

May 19, 2025 EX-99.1

Niu Technologies Announces Unaudited First Quarter 2025 Financial Results -- First Quarter Revenues of RMB 682.0 million, increase 35.1% year over year -- First Quarter Net Loss of RMB 38.8 million, compared to net loss of RMB 54.8 million in the sam

Exhibit 99.1 Niu Technologies Announces Unaudited First Quarter 2025 Financial Results - First Quarter Revenues of RMB 682.0 million, increase 35.1% year over year - First Quarter Net Loss of RMB 38.8 million, compared to net loss of RMB 54.8 million in the same period of last year BEIJING, China, May 19, 2025 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider

May 16, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-38696 NIU TECHNOLOGIES Building C, Rongxin Technology Center, No. 34 Chuangyuan Road, Chaoyang District, Beijing 100012 People’s Republic of China (Address

April 18, 2025 EX-11.2

NIU TECHNOLOGIES AMENDED AND RESTATED STATEMENT OF POLICIES GOVERNING MATERIAL NON-PUBLIC INFORMATION AND THE PREVENTION OF INSIDER TRADING (AS ADOPTED BY THE BOARD OF DIRECTORS OF NIU TECHNOLOGIES AND EFFECTIVE ON DECEMBER 22, 2023)

Exhibit 11.2 NIU TECHNOLOGIES AMENDED AND RESTATED STATEMENT OF POLICIES GOVERNING MATERIAL NON-PUBLIC INFORMATION AND THE PREVENTION OF INSIDER TRADING (AS ADOPTED BY THE BOARD OF DIRECTORS OF NIU TECHNOLOGIES AND EFFECTIVE ON DECEMBER 22, 2023) This Amended and Restated Statement of Policies Governing Material Non-Public Information and the Prevention of Insider Trading (this “Statement”) applie

April 18, 2025 EX-13.1

Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Yan Li, Chief Executive Officer of the Company, certify, pursuant

April 18, 2025 EX-4.11

Third Amended and Restated Exclusive Option Agreement

Exhibit 4.11 Third Amended and Restated Exclusive Option Agreement This Third Amended and Restated Exclusive Option Agreement (“Agreement”) is executed on 14 November 2024, in Beijing, the People’s Republic of China (“PRC”), by and among the following Parties: Party A:Niu Technologies, a company established and existing under the laws of the Cayman Islands. Party B: Yi’nan Li, a PRC citizen, with

April 18, 2025 EX-12.1

Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Yan Li, certify that: 1.I have reviewed this annual report on Form 20-F of Niu Technologies; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the ci

April 18, 2025 EX-4.9

Power of Attorney

Exhibit 4.9 Power of Attorney Date: 14 November 2024 I, the undersigned, Changlong Sheng, a citizen of the People’s Republic of China (“PRC”) with Identification Card No.: 321002197604111511, and a holder of 5.26% of the entire registered capital (“My Shareholding”) in Beijing Niudian Technology Co., Ltd. (“Domestic Company”), hereby irrevocably authorize Niu Technologies (“Cayman Company”) to exe

April 18, 2025 EX-4.10

Third Amended and Restated Equity Pledge Agreement

Exhibit 4.10 Third Amended and Restated Equity Pledge Agreement This Third Amended and Restated Equity Pledge Agreement (“Agreement”) is executed on 14 November 2024 in Beijing, the People’s Republic of China (“PRC”) by and among the following Parties: Party A: Beijing Niudian Information Technology Co., Ltd.,a limited liability company established and existing under the laws of the PRC, with its

April 18, 2025 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024. OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

April 18, 2025 EX-15.1

Consent of Independent Registered Public Accounting Firm

Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the registration statements (No. 333-229190 and No. 333-278892) on Form S-8 of our reports dated April 18, 2025, with respect to the consolidated financial statements of Niu Technologies and the effectiveness of internal control over financial reporting. /s/ KPMG Huazhen LLP Beijin

April 18, 2025 EX-15.2

Date: April 18, 2025

Exhibit 15.2 Date: April 18, 2025 Niu Technologies Building C, Rongxin Technology Center, No. 34 Chuangyuan Road, Chaoyang District, Beijing 100012 People’s Republic of China Dear Sir/Madam: We hereby consent to the use of our name and the summary of our opinion under the headings, “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure” and “Item 4. Information on the Co

April 18, 2025 EX-12.2

Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Fion Wenjuan Zhou, certify that: 1.I have reviewed this annual report on Form 20-F of Niu Technologies; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

April 18, 2025 EX-13.2

Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.2 Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Fion Wenjuan Zhou, Chief Financial Officer of the Company, certify

April 7, 2025 EX-99.1

Niu Technologies Provides First Quarter 2025 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides First Quarter 2025 Sales Volume Update BEIJING, China, April. 04 2025 - Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provided its sales volume results for the first quarter of 2025. 1Q 2025 1Q 2024 YoY% China Market 183,065 110,115 66 % International Markets 20,248 19,024 6 % T

April 7, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number: 001-38696 NIU TECHNOLOGIES Building C, Rongxin Technology Center, No. 34 Chuangyuan Road, Chaoyang District, Beijing 100012 People’s Republic of China (Addres

March 17, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal e

March 17, 2025 EX-99.1

Niu Technologies Announces Unaudited Fourth Quarter and Full Year 2024 Financial Results -- Fourth Quarter Revenues of RMB 819.2 million, increase 71.1% year over year -- Fourth Quarter Net Loss of RMB 72.5 million, compared to net loss of RMB 130.2

Exhibit 99.1 Niu Technologies Announces Unaudited Fourth Quarter and Full Year 2024 Financial Results - Fourth Quarter Revenues of RMB 819.2 million, increase 71.1% year over year - Fourth Quarter Net Loss of RMB 72.5 million, compared to net loss of RMB 130.2 million in the same period of last year - Full Year Revenues of RMB 3,288.3 million, increase 24.0% year over year - Full Year Net loss of

January 6, 2025 EX-99.1

Niu Technologies Provides Fourth Quarter and Full Year 2024 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Fourth Quarter and Full Year 2024 Sales Volume Update BEIJING, China, January 06, 2025 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its sales volume results for the fourth quarter and full year 2024. 4Q 2024 4Q 2023 FY2024 FY2023 China Market 182,333 110,454 759,094

January 6, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

November 18, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2024 Commission File Number: 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principa

November 18, 2024 EX-99.1

Niu Technologies Announces Unaudited Third Quarter 2024 Financial Results -- Third Quarter Revenues of RMB 1,023.9 million, an increase of 10.5% year-over-year -- Third Quarter Net Loss of RMB 40.9 million, compared to Net Loss of RMB 79.4 million in

Exhibit 99.1 Niu Technologies Announces Unaudited Third Quarter 2024 Financial Results - Third Quarter Revenues of RMB 1,023.9 million, an increase of 10.5% year-over-year - Third Quarter Net Loss of RMB 40.9 million, compared to Net Loss of RMB 79.4 million in the same period of last year BEIJING, China, November 18, 2024 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s lea

October 4, 2024 EX-99.1

Niu Technologies Provides Third Quarter 2024 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Third Quarter 2024 Sales Volume Update BEIJING, China, October 04, 2024 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its sales volume results for the third quarter of 2024. 3Q 2024 3Q 2023 YTD 2024 YTD 2023 China Market 259,094 230,445 576,761 490,540 International M

October 4, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

August 12, 2024 EX-99.1

Niu Technologies Announces Unaudited Second Quarter 2024 Financial Results -- Second Quarter Revenues of RMB 940.5 million, an increase of 13.5% year-over-year -- Second Quarter Net Loss of RMB 24.9 million, compared to Net Loss of RMB 1.9 million in

Exhibit 99.1 Niu Technologies Announces Unaudited Second Quarter 2024 Financial Results - Second Quarter Revenues of RMB 940.5 million, an increase of 13.5% year-over-year - Second Quarter Net Loss of RMB 24.9 million, compared to Net Loss of RMB 1.9 million in the same period of last year BEIJING, China, August 12, 2024 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leadi

August 12, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number: 001-386

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

July 5, 2024 EX-99.1

Niu Technologies Provides Second Quarter 2024 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Second Quarter 2024 Sales Volume Update BEIJING, China, July 04, 2024 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its sales volume results for the second quarter 2024. 2Q 2024 2Q 2023 1H 2024 1H 2023 China Market 207,552 178,567 317,667 260,085 International Markets

July 5, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2024 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal ex

May 20, 2024 EX-99.1

Niu Technologies Announces Unaudited First Quarter 2024 Financial Results -- First Quarter Revenues of RMB 504.7 million, an increase of 21.0% year-over-year -- First Quarter Net Loss of RMB 54.8 million, compared to Net Loss of RMB 60.3 million in t

Exhibit 99.1 Niu Technologies Announces Unaudited First Quarter 2024 Financial Results - First Quarter Revenues of RMB 504.7 million, an increase of 21.0% year-over-year - First Quarter Net Loss of RMB 54.8 million, compared to Net Loss of RMB 60.3 million in the same period of last year BEIJING, China, May 20, 2024 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading pr

May 20, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2024 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal exe

April 24, 2024 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023. OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

April 24, 2024 EX-13.1

Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Yan Li, Chief Executive Officer of the Company, certify, pursuant

April 24, 2024 EX-13.2

Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.2 Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Fion Wenjuan Zhou, Chief Financial Officer of the Company, certify

April 24, 2024 S-8

As filed with the Securities and Exchange Commission on April 24, 2024

As filed with the Securities and Exchange Commission on April 24, 2024 Registration No.

April 24, 2024 EX-FILING FEES

CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) Niu Technologies (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) Niu Technologies (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title(1) Fee Calculation Rule Amount Registered(2) Proposed Maximum Offering Price per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A Ordinary Shares, par value $0.

April 24, 2024 EX-15.2

Date: April 24, 2024

Exhibit 15.2 Date: April 24, 2024 Niu Technologies No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China Dear Sir/Madam: We hereby consent to the use of our name and the summary of our opinion under the headings, “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure” and “Item 4. Information on the Company—C. Organiz

April 24, 2024 EX-97

NIU TECHNOLOGIES CLAWBACK POLICY

Exhibit 97 NIU TECHNOLOGIES CLAWBACK POLICY The Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of Niu Technologies (the “Company”) believes that it is appropriate for the Company to adopt this Clawback Policy (the “Policy”) to be applied to the Executive Officers of the Company and adopts this Policy to be effective as of the Effective Date.

April 24, 2024 EX-15.1

Consent of Independent Registered Public Accounting Firm

Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the registration statement (No. 333-229190) on Form S-8 of our reports dated April 24, 2024, with respect to the consolidated financial statements of Niu Technologies and the effectiveness of internal control over financial reporting. /s/ KPMG Huazhen LLP Beijing, China April 24, 2

April 24, 2024 EX-12.1

Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Yan Li, certify that: 1.I have reviewed this annual report on Form 20-F of Niu Technologies; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the ci

April 24, 2024 EX-12.2

Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Fion Wenjuan Zhou, certify that: 1.I have reviewed this annual report on Form 20-F of Niu Technologies; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

April 5, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2024 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal e

April 5, 2024 EX-99.1

Niu Technologies Provides First Quarter 2024 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides First Quarter 2024 Sales Volume Update BEIJING, China, April. 04, 2024 - Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its sales volume results for the first quarter of 2024. 1Q 2024 1Q 2023 YoY% China Market 110,115 81,518 35 % International Markets 19,024 12,889 48 %

March 18, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2024 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal e

March 18, 2024 EX-99.1

Niu Technologies Announces Unaudited Fourth Quarter and Full Year 2023 Financial Results -- Fourth Quarter Revenues of RMB 478.7 million, down 21.8% year over year -- Fourth Quarter Net Loss of RMB 130.2 million, compared to net loss of RMB 37.1 mill

Exhibit 99.1 Niu Technologies Announces Unaudited Fourth Quarter and Full Year 2023 Financial Results - Fourth Quarter Revenues of RMB 478.7 million, down 21.8% year over year - Fourth Quarter Net Loss of RMB 130.2 million, compared to net loss of RMB 37.1 million in the same period of last year - Full Year Revenues of RMB 2,651.8 million, down 16.3% year over year - Full Year Net loss of RMB 271.

February 9, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2024 Commission File Number: 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principa

January 5, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2024 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2024 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

January 5, 2024 EX-99.1

Niu Technologies Provides Fourth Quarter and Full Year 2023 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Fourth Quarter and Full Year 2023 Sales Volume Update BEIJING, China, January 05, 2024 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its sales volume results for the fourth quarter and full year 2023. 4Q 2023 4Q 2022 FY2023 FY2022 China Market 110,454 118,065 600,994

December 22, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2023 Commission File Number: 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principa

December 7, 2023 SC 13D

NIU / Niu Technologies - ADR / Glory Achievement Fund Ltd - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D (Rule 13d-101) Information to be Included in Statements Filed Pursuant to § 240.

December 7, 2023 EX-99.(A)

JOINT FILING AGREEMENT

Exhibit A JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13D referred to below) on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the ordinary shares, par value of $0.

November 20, 2023 EX-99.1

Niu Technologies Announces Third Quarter 2023 Financial Results -- Third Quarter Total Volume of e-scooter sales down 17.1% year over year -- Third Quarter Revenues of RMB 927.0 million, down 19.6% year over year -- Third Quarter Net Loss of RMB 79.4

Exhibit 99.1 Niu Technologies Announces Third Quarter 2023 Financial Results - Third Quarter Total Volume of e-scooter sales down 17.1% year over year - Third Quarter Revenues of RMB 927.0 million, down 19.6% year over year - Third Quarter Net Loss of RMB 79.4 million, compared to Net Income of RMB 2.9 million in the same period of last year BEIJING, China, November 20, 2023 – Niu Technologies (“N

November 20, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2023 Commission File Number: 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principa

October 6, 2023 EX-99.1

Niu Technologies Provides Third Quarter 2023 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Third Quarter 2023 Sales Volume Update BEIJING, China, October 06, 2023 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its sales volume results for the third quarter 2023. 3Q 2023 3Q 2022 YTD 2023 YTD 2022 China Market 230,455 263,189 490,540 592,475 International Mark

October 6, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2023 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

August 14, 2023 EX-99.1

Niu Technologies Announces Second Quarter 2023 Financial Results -- Second Quarter Total Volume of e-scooter sales up 1.5% year over year -- Second Quarter Revenues of RMB 828.8 million, up 0.1% year over year -- Second Quarter Net Loss of RMB 1.9 mi

Exhibit 99.1 Niu Technologies Announces Second Quarter 2023 Financial Results - Second Quarter Total Volume of e-scooter sales up 1.5% year over year - Second Quarter Revenues of RMB 828.8 million, up 0.1% year over year - Second Quarter Net Loss of RMB 1.9 million, compared to net income of RMB 14.4 million in the same period of last year BEIJING, China, Aug 14, 2023 – Niu Technologies (“NIU”, or

August 14, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number: 001-386

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

August 8, 2023 CORRESP

NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China

NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China August 8, 2023 VIA EDGAR Ms. Beverly Singleton Ms. Melissa Gilmore Ms. Jennifer Thompson Mr. Chris Dunham Division of Corporation Finance Office of Manufacturing Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 RE: Niu Technologies (the “Company”)

August 8, 2023 EX-13.1

 Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1  Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002  In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2022 as filed with the Securities and Exchange Commission on April 21, 2023, as amended by Amendment No. 1 thereto (the “Report”), I, Yan Li, Chief Executive Of

August 8, 2023 EX-12.2

Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2   Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002   I, Fion Wenjuan Zhou, certify that:   1.            I have reviewed this annual report on Form 20-F, as amended by Amendment No. 1 thereto, of Niu Technologies;   2.            Based on my knowledge, this report does not contain any untrue statement of a material fact or omit

August 8, 2023 EX-12.1

Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1   Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002   I, Yan Li, certify that:   1.            I have reviewed this annual report on Form 20-F, as amended by Amendment No. 1 thereto, of Niu Technologies;   2.            Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a

August 8, 2023 EX-13.2

 Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.2  Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002  In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2022 as filed with the Securities and Exchange Commission on April 21, 2023, as amended by Amendment No. 1 thereto (the “Report”), I, Fion Wenjuan Zhou, Chief F

August 8, 2023 EX-15.2

Date: August 8, 2023

Exhibit 15.2 Date: August 8, 2023 Niu Technologies No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China Dear Sir/Madam: We hereby consent to the use of our name and the summary of our opinion under the headings, “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure” and “Item 4. Information on the Company—C. Organiz

August 8, 2023 20-F/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F/A (Amendment No.1)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F/A (Amendment No.1) (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022. OR ☐ TRANSITION REPORT PURSUANT TO S

July 21, 2023 CORRESP

NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China

NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China July 21, 2023 VIA EDGAR Ms. Jennifer Thompson Mr. Chris Dunham Division of Corporation Finance Office of Manufacturing Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 RE: Niu Technologies (the “Company”) Annual Report on Form 20-F for the Fiscal

July 10, 2023 CORRESP

NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China

NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China July 10, 2023 VIA EDGAR Ms. Beverly Singleton Ms. Melissa Gilmore Ms. Jennifer Thompson Mr. Chris Dunham Division of Corporation Finance Office of Manufacturing Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 RE: Niu Technologies (the “Company”)

July 5, 2023 EX-99.1

Niu Technologies Provides Second Quarter 2023 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Second Quarter 2023 Sales Volume Update BEIJING, China, July 04, 2023 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its sales volume results for the second quarter 2023. 2Q 2023 2Q 2022 1H 2023 1H 2022 China Market 178,567 180,299 260,085 329,286 International Markets

July 5, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2023 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal ex

May 22, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal exe

May 22, 2023 EX-99.1

Niu Technologies Announces First Quarter 2023 Financial Results -- First Quarter Revenues of RMB 417.2 million, down 27.5% year over year -- First Quarter Net Loss of RMB 60.3 million, compared to net loss of RMB 29.6 million in the same period of la

Exhibit 99.1 Niu Technologies Announces First Quarter 2023 Financial Results - First Quarter Revenues of RMB 417.2 million, down 27.5% year over year - First Quarter Net Loss of RMB 60.3 million, compared to net loss of RMB 29.6 million in the same period of last year BEIJING, China, May 22, 2023 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urba

April 21, 2023 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022. OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

April 21, 2023 EX-13.2

Certification by Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.2 Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Fion Wenjuan Zhou, Chief Financial Officer of the Company, certify

April 21, 2023 EX-15.1

Consent of KPMG Huazhen LLP

Exhibit 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the registration statement (No. 333-229190) on Form S-8 of our reports dated April 21, 2023, with respect to the consolidated financial statements of Niu Technologies and the effectiveness of internal control over financial reporting. /s/ KPMG Huazhen LLP Beijing, China April 21, 2

April 21, 2023 EX-15.2

Consent of DaHui Lawyers

EXHIBIT 15.2 Date: April 21, 2023 Niu Technologies No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China Dear Sir/Madam: We hereby consent to the use of our name and the summary of our opinion under the headings, “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure” and “Item 4. Information on the Company—C. Organiz

April 21, 2023 EX-13.1

Certification by Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Yan Li, Chief Executive Officer of the Company, certify, pursuant

April 21, 2023 EX-12.1

Certification by Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Yan Li, certify that: 1.I have reviewed this annual report on Form 20-F of Niu Technologies; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the ci

April 21, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2023 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal e

April 21, 2023 EX-12.2

Certification by Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Fion Wenjuan Zhou, certify that: 1.I have reviewed this annual report on Form 20-F of Niu Technologies; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

April 6, 2023 EX-99.1

Niu Technologies Provides First Quarter 2023 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides First Quarter 2023 Sales Volume Update BEIJING, China, April. 04, 2023 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its sales volume results for the first quarter 2023. 1Q 2023 1Q 2022 YoY% China Market 81,518 148,987 -45.3 % International Markets 12,889 14,672 -12.2

April 6, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2023 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal e

March 20, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2023 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal e

March 20, 2023 EX-99.1

Niu Technologies Announces Unaudited Fourth Quarter and Full Year 2022 Financial Results -- Fourth Quarter Revenues of RMB 612.3 million, down 37.9% year over year -- Fourth Quarter Net Loss of RMB 37.1 million, compared to net income of RMB 47.6 mil

Exhibit 99.1 Niu Technologies Announces Unaudited Fourth Quarter and Full Year 2022 Financial Results - Fourth Quarter Revenues of RMB 612.3 million, down 37.9% year over year - Fourth Quarter Net Loss of RMB 37.1 million, compared to net income of RMB 47.6 million in the same period of last year - Full Year Revenues of RMB 3,168.6 million, down 14.5% year over year - Full Year Net loss of RMB 49.

February 10, 2023 SC 13G/A

NIU / Niu Technologies / Nikko Asset Management Americas, Inc. - SC 13G/A Passive Investment

SC 13G/A 1 brhc10047832sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* NIU Technologies (Name of Issuer) Ordinary Shares, par value $0.0001 per share (Title of Class of Securities) 65481N100 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Ch

February 9, 2023 SC 13G/A

NIU / Niu Technologies / Glory Achievement Fund Ltd - SC 13G/A Passive Investment

SC 13G/A 1 tm236078d1sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to § 240.13d-1 (b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 Under the Securities Exchange Act of 1934 (Amendment No. 3)* Niu Technologies (Name of Issuer) Ordinary Shares, par valu

February 9, 2023 SC 13G/A

NIU / Niu Technologies / Hu Token Yilin - SC 13G/A Passive Investment

SC 13G/A 1 tm236078d2sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to § 240.13d-1 (b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 Under the Securities Exchange Act of 1934 (Amendment No. 4)* Niu Technologies (Name of Issuer) Ordinary Shares, par valu

February 6, 2023 SC 13G/A

NIU / Niu Technologies / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Niu Technologies (Name of Issuer) Common Stock (Title of Class of Securities) 65481N100 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

February 3, 2023 SC 13G/A

NIU / Niu Technologies / Sumitomo Mitsui Trust Holdings, Inc. - AMENDMENT NO. 1 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Niu Technologies (Name of Issuer) Ordinary Shares, par value $0.0001 per share (Title of Class of Securities) 65481N100 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the

January 6, 2023 EX-99.1

Niu Technologies Provides Fourth Quarter 2022 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Fourth Quarter 2022 Sales Volume Update BEIJING, China, Jan. 06, 2023 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today provides its sales volume results for the fourth quarter 2022. 4Q 2022 4Q 2021 FY2022 FY2021 China Market 118,065 205,239 710,540 988,023 International Markets 2

January 6, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2023 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2023 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal

November 21, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number: 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principa

November 21, 2022 EX-99.1

Niu Technologies Announces Third Quarter 2022 Financial Results -- Third Quarter Total Volume of e-scooter sales down 19.2% year over year -- Third Quarter Revenues of RMB 1,153.2 million, down 6.0% year over year -- Third Quarter Net income of RMB 2

Exhibit 99.1 Niu Technologies Announces Third Quarter 2022 Financial Results - Third Quarter Total Volume of e-scooter sales down 19.2% year over year - Third Quarter Revenues of RMB 1,153.2 million, down 6.0% year over year - Third Quarter Net income of RMB 2.9 million, compared with net income of RMB 91.7 million in the same period of last year BEIJING, China, November 21, 2022 – Niu Technologie

October 7, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2022 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal

October 7, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2022 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal

October 7, 2022 EX-99.1

Niu Technologies Provides Third Quarter 2022 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Third Quarter 2022 Sales Volume Update BEIJING, China, Oct. 07, 2022 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today provides its sales volume results for the third quarter 2022. 3Q 2022 3Q 2021 YTD 2022 YTD 2021 China Market 263,189 392,112 592,475 782,784 International Markets

August 15, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission File Number: 001-386

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal

August 15, 2022 EX-99.1

Niu Technologies Announces Second Quarter 2022 Financial Results -- Second Quarter Total Volume of e-scooter sales down 17.4% year over year -- Second Quarter Revenues of RMB 827.6 million, down 12.4% year over year -- Second Quarter Net income of RM

Exhibit 99.1 Niu Technologies Announces Second Quarter 2022 Financial Results - Second Quarter Total Volume of e-scooter sales down 17.4% year over year - Second Quarter Revenues of RMB 827.6 million, down 12.4% year over year - Second Quarter Net income of RMB 14.4 million, compared with net income of RMB 91.8 million in the same period of last year BEIJING, China, August 15, 2022 ? Niu Technolog

July 5, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal ex

July 5, 2022 EX-99.1

Niu Technologies Provides Second Quarter 2022 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Second Quarter 2022 Sales Volume Update BEIJING, China, July 04, 2022 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today provides its sales volume results for the second quarter 2022. 2Q 2022 2Q 2021 1H 2022 1H 2021 China Market 180,299 246,018 329,286 390,672 International Markets

May 24, 2022 EX-99.1

Niu Technologies Announces First Quarter 2022 Financial Results -- First Quarter Total Volume of e-scooter sales up 9.4% year over year -- First Quarter Revenues of RMB 575.5 million, up 5.1% year over year -- First Quarter Net Loss of RMB 29.6 milli

Exhibit 99.1 Niu Technologies Announces First Quarter 2022 Financial Results - First Quarter Total Volume of e-scooter sales up 9.4% year over year - First Quarter Revenues of RMB 575.5 million, up 5.1% year over year - First Quarter Net Loss of RMB 29.6 million, compared with net loss of RMB 5.4 million in the same period of last year BEIJING, China, May 23, 2022 ? Niu Technologies (?NIU?, or ?th

May 24, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal exe

May 5, 2022 EX-99.1

Niu Technologies Provides Updates on Status Under Holding Foreign Companies Accountable Act

Exhibit 99.1 Niu Technologies Provides Updates on Status Under Holding Foreign Companies Accountable Act BEIJING, May 5, 2022 (GLOBE NEWSWIRE) - Niu Technologies (?NIU? or ?the company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today updates its status under the Holding Foreign Companies Accountable Act (the ?HFCAA?). The Company is aware that it has been iden

May 5, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal exe

April 27, 2022 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F

Table of Contents ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 27, 2022 EX-13.1

Certification by Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Yan Li, Chief Executive Officer of the Company, certify, pursuant

April 27, 2022 EX-15.1

Consent of KPMG Huazhen LLP

EXHIBIT 15.1 Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the registration statement (No. 333-229190) on Form S-8 of our reports dated April 27, 2022, with respect to the consolidated financial statements of Niu Technologies and the effectiveness of internal control over financial reporting. /s/ KPMG Huazhen LLP Beijing, China April 27, 2

April 27, 2022 EX-12.2

Certification by Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Fion Wenjuan Zhou, certify that: 1.I have reviewed this annual report on Form 20-F of Niu Technologies; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

April 27, 2022 EX-12.1

Certification by Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Yan Li, certify that: 1.I have reviewed this annual report on Form 20-F of Niu Technologies; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the ci

April 27, 2022 EX-15.2

Consent of DaHui Lawyers

EX-15.2 8 niu-20211231xex15d2.htm EXHIBIT 15.2 EXHIBIT 15.2 DaHui Lawyers Letterhead Date: April 27, 2022 Niu Technologies No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China Dear Sir/Madam: We hereby consent to the use of our name and the summary of our opinion under the headings, “Item 3. Key Information—D. Risk Factors—Risks Related to Our

April 27, 2022 EX-13.2

Certification by Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.2 Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Fion Wenjuan Zhou, Chief Financial Officer of the Company, certify

April 4, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2022 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal e

April 4, 2022 EX-99.1

Niu Technologies Provides First Quarter 2022 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides First Quarter 2022 Sales Volume Update BEIJING, April 04, 2022 ? Niu Technologies (?NIU? or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today provides its sales volume results for the first quarter 2022. 1Q 2022 1Q 2021 YoY% China Market 148,987 144,654 3.0 % International Markets 14,672 4,995 193.7 % Total 16

March 9, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2022 Commission File Number: 001-3869

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal e

March 9, 2022 EX-99.1

Niu Technologies Announces Fourth Quarter and Full Year 2021 Financial Results -- Fourth Quarter Total Volume of e-scooter sales up 58.3% year over year -- Fourth Quarter Revenues of RMB 986.1 million, up 46.7% year over year -- Fourth Quarter Net In

Exhibit 99.1 Niu Technologies Announces Fourth Quarter and Full Year 2021 Financial Results - Fourth Quarter Total Volume of e-scooter sales up 58.3% year over year - Fourth Quarter Revenues of RMB 986.1 million, up 46.7% year over year - Fourth Quarter Net Income of RMB 47.6 million, compared with RMB 58.2 million in the same period of last year - Full Year Total volume of e-scooter sales up 72.5

February 14, 2022 SC 13G

NIU / Niu Technologies / Nikko Asset Management Americas, Inc. - SC13G Passive Investment

SC 13G 1 brhc10033966sc13g.htm SC13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. n/a)* NIU Technologies (Name of Issuer) Ordinary Shares, par value $0.0001 per share (Title of Class of Securities) 65481N100 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check

February 4, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission File Number: 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principa

February 4, 2022 SC 13G

NIU / Niu Technologies / Sumitomo Mitsui Trust Holdings, Inc. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. n/a)* Niu Technologies (Name of Issuer) Ordinary Shares, par value $0.0001 per share (Title of Class of Securities) 65481N100 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the

February 4, 2022 SC 13G

NIU / Niu Technologies / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Niu Technologies (Name of Issuer) Common Stock (Title of Class of Securities) 65481N100 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedul

January 26, 2022 SC 13G/A

NIU / Niu Technologies / Glory Achievement Fund Ltd - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to ? 240.

January 26, 2022 SC 13G/A

NIU / Niu Technologies / Hu Token Yilin - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to ? 240.

January 5, 2022 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal

January 5, 2022 EX-99.1

Niu Technologies Provides Fourth Quarter 2021 Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Fourth Quarter 2021 Sales Volume Update BEIJING, China, January 4, 2022 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today provides its sales volume results for the fourth quarter 2021. 4Q 2021 4Q 2020 Year 2021 Year 2020 China Market 205,239 137,586 988,023 572,154 International M

November 22, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission File Number: 001-3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principa

November 22, 2021 EX-99.1

Niu Technologies Announces Third Quarter 2021 Financial Results -- Third Quarter Total Volume of e-scooter sales up 58.3% year over year -- Third Quarter Revenues of RMB 1,226.4 million, up 37.1% year over year -- Third Quarter Net Income of RMB 91.7

Exhibit 99.1 Niu Technologies Announces Third Quarter 2021 Financial Results - Third Quarter Total Volume of e-scooter sales up 58.3% year over year - Third Quarter Revenues of RMB 1,226.4 million, up 37.1% year over year - Third Quarter Net Income of RMB 91.7 million, compared with RMB 80.0 million in the same period of last year BEIJING, China, November 22, 2021 ? Niu Technologies (?NIU?, or ?th

October 19, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal

October 19, 2021 EX-99.1

Niu Technologies Announces Appointment of New Chief Financial Officer

Exhibit 99.1 Niu Technologies Announces Appointment of New Chief Financial Officer BEIJING, China, October 19, 2021 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today announces that the board of directors of the Company has appointed Ms. Fion Zhou as the new chief financial officer with effective date November 15th, 202

October 12, 2021 EX-99.1

Niu Technologies Provides Third Quarter 2021 E-scooter Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Third Quarter 2021 E-scooter Sales Volume Update BEIJING, China, October 11, 2021 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today provides its e-scooter sales volume results for the third quarter 2021. 3Q 2021 3Q 2020 YTD 2021 YTD 2020 China Market 392,112 245,293 782,784 434,56

October 12, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 001-38

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal

September 23, 2021 EX-99.1

Niu Technologies Announces Management Change

Exhibit 99.1 Niu Technologies Announces Management Change BEIJING, China, September 22, 2021 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today announced that Mr. Hardy Peng Zhang has tendered his resignation as the Company?s chief financial officer due to personal reasons, effective September 30. The Company has initia

September 23, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2021 Commission File Number: 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of princip

August 16, 2021 EX-99.1

Niu Technologies Announces Second Quarter 2021 Financial Results -- Second Quarter Total Volume of e-scooter sales up 58.0% year over year -- Second Quarter Revenues of RMB 944.7 million, up 46.5% year over year -- Second Quarter Net Income of RMB 91

Exhibit 99.1 Niu Technologies Announces Second Quarter 2021 Financial Results - Second Quarter Total Volume of e-scooter sales up 58.0% year over year - Second Quarter Revenues of RMB 944.7 million, up 46.5% year over year - Second Quarter Net Income of RMB 91.8 million, compared with RMB 56.8 million in the same period of last year BEIJING, China, August 16, 2021 ? Niu Technologies (?NIU?, or ?th

August 16, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission File Number: 001-386

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal

July 9, 2021 EX-99.1

Niu Technologies Provides Second Quarter 2021 E-scooter Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Second Quarter 2021 E-scooter Sales Volume Update BEIJING, China, July 6, 2021 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today provides its e-scooter sales volume results for the second quarter 2021. 2Q 2021 2Q 2020 1H 2021 1H 2020 China Market 246,018 154,959 390,672 189,275 In

July 9, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal ex

May 17, 2021 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2021 Commission File Number: 001-38696

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal exe

May 17, 2021 EX-99.1

Niu Technologies Announces First Quarter 2021 Financial Results -- First Quarter Total volume of e-scooter sales up 272.6% year over year -- First Quarter Revenues of RMB 547.3 million, up 135.0% year over year -- First Quarter Net Loss of RMB 5.4 mi

Exhibit 99.1 Niu Technologies Announces First Quarter 2021 Financial Results - First Quarter Total volume of e-scooter sales up 272.6% year over year - First Quarter Revenues of RMB 547.3 million, up 135.0% year over year - First Quarter Net Loss of RMB 5.4 million, compared with net loss of RMB 26.4 million in the first quarter of last year BEIJING, China, May 17, 2021 ? Niu Technologies (?NIU?,

April 9, 2021 EX-15.1

Consent of KPMG Huazhen LLP

EXHIBIT 15.1 Consent of Independent Registered Public Accounting Firm The Board of Directors Niu Technologies: We consent to the incorporation by reference in the registration statement (No. 333- 229190) on Form S-8 of Niu Technologies of our report dated April 9, 2021, with respect to the consolidated balance sheets of Niu Technologies as of December 31, 2019 and 2020, and the related consolidate

April 9, 2021 EX-13.2

Certification by Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.2 Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Hardy Peng Zhang, Chief Financial Officer of the Company, certify,

April 9, 2021 EX-15.2

Consent of DaHui Lawyers

EXHIBIT 15.2 Dahui Lawyers Letterhead Date: April 9, 2021 Niu Technologies No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China Dear Sir/Madam: We hereby consent to the use of our name and the summary of our opinion under the headings, ?Item 3. Key Information?D. Risk Factors?Risks Related to Our Corporate Structure? and ?Item 4. Information o

April 9, 2021 EX-12.2

Certification by Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Hardy Peng Zhang, certify that: 1. I have reviewed this annual report on Form 20-F of Niu Technologies; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

April 9, 2021 EX-13.1

Certification by Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the ?Company?) on Form 20-F for the year ended December 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), I, Yan Li, Chief Executive Officer of the Company, certify, pursuant

April 9, 2021 20-F

- FORM 20-F

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 9, 2021 EX-12.1

Certification by Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Yan Li, certify that: 1. I have reviewed this annual report on Form 20-F of Niu Technologies; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the

April 7, 2021 EX-99.1

Niu Technologies Provides Updates on First Quarter 2021 E-scooter Sales Volume and New Products Launch

Exhibit 99.1 Niu Technologies Provides Updates on First Quarter 2021 E-scooter Sales Volume and New Products Launch BEIJING, China, April 6, 2021 ? Niu Technologies (?NIU?, or ?the Company?) (NASDAQ: NIU), the world?s leading provider of smart urban mobility solutions, today provides its e-scooter sales volume results for the first quarter 2021 and update on new products launch. Q1 2021 Q1 2020 Ch

April 7, 2021 6-K

Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal e

March 12, 2021 EX-99.1

Niu Technologies Announces Fourth Quarter and Full Year 2020 Financial Results -- Fourth Quarter Total volume of e-scooter sales up 41.6% year over year -- Fourth Quarter Revenues of RMB 672.0 million, up 25.3% year over year -- Fourth Quarter Net in

Exhibit 99.1 Niu Technologies Announces Fourth Quarter and Full Year 2020 Financial Results - Fourth Quarter Total volume of e-scooter sales up 41.6% year over year - Fourth Quarter Revenues of RMB 672.0 million, up 25.3% year over year - Fourth Quarter Net income of RMB 58.2 million, compared with RMB 60.7 million in the fourth quarter of last year - Full Year Total volume of e-scooter sales up 4

March 12, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People?s Republic of China (Address of principal e

January 27, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to § 240.

January 27, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to § 240.

January 11, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2021 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

January 11, 2021 EX-99.1

Niu Technologies Provides Fourth Quarter 2020 E-scooter Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Fourth Quarter 2020 E-scooter Sales Volume Update BEIJING, China, January 7, 2020 – Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its e-scooter sales volume results for the fourth quarter 2020. Q4 2020 Q4 2019 Year 2020 Year 2019 China Market 137,586 101,918 572,154 392

November 25, 2020 EX-99.A

Schedule of Transactions.

EX-99.A EXHIBIT A SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 11/9/2020 15,466 $30.3664 $30.00 $31.49 11/12/2020 96,460 $31.7615 $30.05 $32.84 11/13/2020 96,460 $33.4552 $32.00 $37.14 11/16/2020 96,460 $33.3899 $32.46 $34.91 11/17/2020 96,460 $33.8608 $32.80 $34.79 11/18/2020 96,460 $32.2372 $31.67 $34.63 1

November 25, 2020 SC 13D/A

NIU / Niu Technologies / GGV Capital V L.P. - SC 13D/A Activist Investment

SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

November 25, 2020 EX-99.1

Agreement regarding filing of joint Schedule 13D.

EX-99.1 EXHIBIT 1 JOINT FILING STATEMENT I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the ownership by each of the undersigned of Class A Ordinary Shares of Niu Technologies is filed on behalf of each of the undersigned. Dated: November 25, 2020 GGV CAPITAL V L.P. GGV CAPITAL V ENTREPRENEURS FUND L.P. BY: GGV CAPITAL V L.L.

November 24, 2020 6-K

Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2020 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principa

November 24, 2020 EX-99.1

Niu Technologies Announces Third Quarter 2020 Financial Results — Third Quarter Total volume of e-scooter sales up 67.9% year over year — Third Quarter Revenues of RMB 894.5 million, up 36.7% year over year — Third Quarter Net income of RMB 80.0 mill

Exhibit 99.1 Niu Technologies Announces Third Quarter 2020 Financial Results — Third Quarter Total volume of e-scooter sales up 67.9% year over year — Third Quarter Revenues of RMB 894.5 million, up 36.7% year over year — Third Quarter Net income of RMB 80.0 million, compared with RMB 66.4 million in the third quarter of last year BEIJING, Nov. 23, 2020 (GLOBE NEWSWIRE) — Niu Technologies (“NIU”,

November 24, 2020 EX-99.2

Niu Technologies Announces Changes to Board and Committee Compositions

Exhibit 99.2 Niu Technologies Announces Changes to Board and Committee Compositions BEIJING, Nov. 23, 2020 (GLOBE NEWSWIRE) — Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today announced changes to its board of directors (the “Board”) and committees of the Board. Ms. Jenny Hong Wei Lee has resigned as an independent direc

November 13, 2020 SC 13D/A

NIU / Niu Technologies / GGV Capital V L.P. - SC 13D/A Activist Investment

SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

November 13, 2020 EX-99.1

JOINT FILING STATEMENT

EX-99.1 EXHIBIT 1 JOINT FILING STATEMENT I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the ownership by each of the undersigned of Class A Ordinary Shares of Niu Technologies is filed on behalf of each of the undersigned. Dated: November 13, 2020 GGV CAPITAL V L.P. GGV CAPITAL V ENTREPRENEURS FUND L.P. BY: GGV CAPITAL V L.L.

November 13, 2020 EX-99.A

SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 10/20/2020 129,909 $ 31.5520 $ 30.74 $ 32.42 10/21/2020 118,599 $ 31.3407 $ 30.44 $ 32.55 10/22/2020 99,687 $ 28.2

EX-99.A EXHIBIT A SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 10/20/2020 129,909 $ 31.5520 $ 30.74 $ 32.42 10/21/2020 118,599 $ 31.3407 $ 30.44 $ 32.55 10/22/2020 99,687 $ 28.2561 $ 27.60 $ 30.28 10/23/2020 96,460 $ 27.6342 $ 27.02 $ 28.48 10/26/2020 73,560 $ 26.6267 $ 26.14 $ 28.14 11/4/2020 96,460 $ 31.41

October 23, 2020 SC 13D/A

NIU / Niu Technologies / GGV Capital V L.P. - SC 13D/A Activist Investment

SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No.

October 23, 2020 EX-99.A

SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 10/14/2020 207,821 $ 28.6012 $ 28.05 $ 29.50 10/15/2020 122,805 $ 28.9955 $ 28.05 $ 29.50 10/16/2020 289,380 $ 31.

EX-99.A EXHIBIT A SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 10/14/2020 207,821 $ 28.6012 $ 28.05 $ 29.50 10/15/2020 122,805 $ 28.9955 $ 28.05 $ 29.50 10/16/2020 289,380 $ 31.9589 $ 28.05 $ 29.50 10/19/2020 229,763 $ 30.6859 $ 28.05 $ 29.50 Total 849,769 GGV Capital V Entrepreneurs Fund L.P. Sale Date ADSs

October 23, 2020 EX-99.1

JOINT FILING STATEMENT

EX-99.1 EXHIBIT 1 JOINT FILING STATEMENT I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the ownership by each of the undersigned of Class A Ordinary Shares of Niu Technologies is filed on behalf of each of the undersigned. Dated: October 22, 2020 GGV CAPITAL V L.P. GGV CAPITAL V ENTREPRENEURS FUND L.P. BY: GGV CAPITAL V L.L.C

October 19, 2020 EX-99.A

SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 9/29/2020 40,721 $ 18.7552 $ 18.25 $ 19.28 9/30/2020 30,775 $ 19.0090 $ 18.66 $ 19.66 10/7/2020 67,514 $ 22.9510 $

EX-99.A EXHIBIT A SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 9/29/2020 40,721 $ 18.7552 $ 18.25 $ 19.28 9/30/2020 30,775 $ 19.0090 $ 18.66 $ 19.66 10/7/2020 67,514 $ 22.9510 $ 22.60 $ 23.56 10/8/2020 66,822 $ 22.9895 $ 22.80 $ 23.30 10/9/2020 289,380 $ 26.2035 $ 23.74 $ 27.05 10/12/2020 174,104 $ 27.2831 $

October 19, 2020 SC 13D/A

NIU / Niu Technologies / GGV Capital V L.P. - SC 13D/A Activist Investment

SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

October 19, 2020 EX-99.1

JOINT FILING STATEMENT

EX-99.1 EXHIBIT 1 JOINT FILING STATEMENT I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the ownership by each of the undersigned of Class A Ordinary Shares of Niu Technologies is filed on behalf of each of the undersigned. Dated: October 19, 2020 GGV CAPITAL V L.P. GGV CAPITAL V ENTREPRENEURS FUND L.P. BY: GGV CAPITAL V L.L.C

October 13, 2020 EX-99.1

Niu Technologies Provides Third Quarter 2020 E-scooter Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Third Quarter 2020 E-scooter Sales Volume Update BEIJING, Oct. 09, 2020 (GLOBE NEWSWIRE) — Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its e-scooter sales volume results for the third quarter 2020. Q3 2020 Q3 2019 YTD 2020 YTD 2019 China Market 245,293 144,158 434,568

October 13, 2020 6-K

Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2020 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

October 5, 2020 EX-99.A

SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 7/7/2020 86,592 $ 22.5508 $ 21.28 $ 24.28 7/8/2020 48,230 $ 24.1996 $ 21.91 $ 25.93 7/9/2020 48,230 $ 22.7065 $ 22

EX-99.A EXHIBIT A SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Weighted Average Price Per ADS Low Price Per ADS High Price Per ADS 7/7/2020 86,592 $ 22.5508 $ 21.28 $ 24.28 7/8/2020 48,230 $ 24.1996 $ 21.91 $ 25.93 7/9/2020 48,230 $ 22.7065 $ 22.12 $ 25.70 7/10/2020 48,230 $ 21.9897 $ 21.53 $ 23.53 7/13/2020 48,230 $ 22.4765 $ 21.11 $ 23.72 7/14/2020 48,230 $ 21.1666 $ 20.66

October 5, 2020 EX-99.1

JOINT FILING STATEMENT

EX-99.1 EXHIBIT 1 JOINT FILING STATEMENT I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the ownership by each of the undersigned of Class A Ordinary Shares of Niu Technologies is filed on behalf of each of the undersigned. Dated: October 2, 2020 GGV CAPITAL V L.P. GGV CAPITAL V ENTREPRENEURS FUND L.P. BY: GGV CAPITAL V L.L.C.

October 5, 2020 SC 13D/A

NIU / Niu Technologies / GGV Capital V L.P. - SC 13D/A Activist Investment

SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No.

August 18, 2020 EX-99.2

Niu Technologies Announces Changes to Board and Committee Compositions

Exhibit 99.2 Niu Technologies Announces Changes to Board and Committee Compositions BEIJING, Aug. 17, 2020 (GLOBE NEWSWIRE) — Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today announced changes to its board of directors (the “Board”) and committees of the Board. Mr. Xiaojun Li has resigned as an independent director from

August 18, 2020 6-K

Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2020 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

August 18, 2020 EX-99.1

Niu Technologies Announces Second Quarter 2020 Financial Results — Second Quarter Total volume of e-scooter sales up 61.2% year over year —Second Quarter Revenues of RMB 644.9 million, up 21.6% year over year — Second Quarter Net income of RMB 56.8 m

Exhibit 99.1 Niu Technologies Announces Second Quarter 2020 Financial Results — Second Quarter Total volume of e-scooter sales up 61.2% year over year —Second Quarter Revenues of RMB 644.9 million, up 21.6% year over year — Second Quarter Net income of RMB 56.8 million, compared with RMB 51.0 million in the second quarter of last year BEIJING, Aug. 17, 2020 (GLOBE NEWSWIRE) — Niu Technologies (“NI

July 10, 2020 SC 13D/A

NIU / Niu Technologies / Ggv Capital V L.p. - SC 13D/A Activist Investment

SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

July 10, 2020 EX-99.1

JOINT FILING STATEMENT

EX-99.1 EXHIBIT 1 JOINT FILING STATEMENT I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the ownership by each of the undersigned of Class A Ordinary Shares of Niu Technologies is filed on behalf of each of the undersigned. Dated: July 9, 2020 GGV CAPITAL V L.P. GGV CAPITAL V ENTREPRENEURS FUND L.P. BY: GGV CAPITAL V L.L.C. IT

July 10, 2020 EX-99.A

SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Low Price Per ADS High Price Per ADS Weighted Average Price Per ADS 6/23/2020 100,054 $ 15.00 $ 16.00 $ 15.5247 6/24/2020 104,163 $ 14.03 $ 15.72 $ 14.6002 6/25/2020 83,850 $ 14.60 $

EX-99.A EXHIBIT A SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Low Price Per ADS High Price Per ADS Weighted Average Price Per ADS 6/23/2020 100,054 $ 15.00 $ 16.00 $ 15.5247 6/24/2020 104,163 $ 14.03 $ 15.72 $ 14.6002 6/25/2020 83,850 $ 14.60 $ 16.06 $ 15.6609 6/26/2020 68,965 $ 15.06 $ 15.99 $ 15.4119 6/29/2020 48,757 $ 14.62 $ 15.54 $ 15.2093 6/30/2020 62,282 $ 14.62 $ 15

July 6, 2020 6-K

Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2020 Commission File Number: 001-38696 NIU TECHNOLOGIES No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal ex

July 6, 2020 EX-99.1

Niu Technologies Provides Second Quarter 2020 E-scooter Sales Volume Update

Exhibit 99.1 Niu Technologies Provides Second Quarter 2020 E-scooter Sales Volume Update BEIJING, China, July 6, 2020 — Niu Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, today provides its e-scooter sales volume results for the second quarter 2020. Q2 2020 Q2 2019 China Market 154,959 85,617 International Markets 5,179 13,748

June 29, 2020 SC 13D/A

NIU / Niu Technologies / Ggv Capital V L.p. - SC 13D/A Activist Investment

SC 13D/A SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No.

June 29, 2020 EX-99.1

JOINT FILING STATEMENT

EX-99.1 EXHIBIT 1 JOINT FILING STATEMENT I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the ownership by each of the undersigned of Class A Ordinary Shares of Niu Technologies is filed on behalf of each of the undersigned. Dated: June 29, 2020 GGV CAPITAL V L.P. GGV CAPITAL V ENTREPRENEURS FUND L.P. BY: GGV CAPITAL V L.L.C. I

June 29, 2020 EX-99.A

SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Low Price Per ADS High Price Per ADS Weighted Average Price Per ADS 5/19/2020 9,475 $ 10.50 $ 10.63 $ 10.5150 5/20/2020 96 $ 10.60 $ 10.60 $ 10.4920 5/26/2020 25,026 $ 10.50 $ 10.83

EX-99.A EXHIBIT A SCHEDULE OF TRANSACTIONS GGV Capital V L.P. Sale Date ADSs Sold (1) Low Price Per ADS High Price Per ADS Weighted Average Price Per ADS 5/19/2020 9,475 $ 10.50 $ 10.63 $ 10.5150 5/20/2020 96 $ 10.60 $ 10.60 $ 10.4920 5/26/2020 25,026 $ 10.50 $ 10.83 $ 10.5493 5/27/2020 3,407 $ 10.50 $ 10.55 $ 10.4708 5/28/2020 23,420 $ 10.50 $ 10.88 $ 10.5901 5/29/2020 30,715 $ 10.50 $ 10.77 $ 10

June 3, 2020 6-K

Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2020 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal e

June 3, 2020 EX-99.1

NIU Strengthens Market Positioning with New E-bicycles in China and Retail Store Expansion in International Markets

Exhibit 99.1 NIU Strengthens Market Positioning with New E-bicycles in China and Retail Store Expansion in International Markets Beijing, June 1, 2020 - NIU Technologies (“NIU”, or “the Company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, announced that the Company launched a new product G0 via e-commerce platform on May 25 2020, a new entry-level e-bicycle mode

May 19, 2020 6-K

Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2020 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 10 Wangjing Street, Building A, 11/F Chaoyang District, Beijing 100102 People’s Republic of China (Address of principal executive

May 19, 2020 EX-99.1

Niu Technologies Announces First Quarter 2020 Financial Results — First Quarter Total volume of e-scooter sales down 39.4% year over year — First Quarter Revenues of RMB 232.9 million, down 34.4% year over year — First Quarter Net loss of RMB 26.4 mi

Exhibit 99.1 Niu Technologies Announces First Quarter 2020 Financial Results — First Quarter Total volume of e-scooter sales down 39.4% year over year — First Quarter Revenues of RMB 232.9 million, down 34.4% year over year — First Quarter Net loss of RMB 26.4 million, compared with net income of RMB 12.0 million in the first quarter of last year BEIJING, May 18, 2020 (GLOBE NEWSWIRE) — Niu Techno

April 24, 2020 EX-15.2

Consent of DaHui Lawyers

EXHIBIT 15.2 Dahui Lawyers Letterhead Date: April 24, 2020 Niu Technologies No.1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China Dear Sir/Madam: We hereby consent to the use of our name and the summary of our opinion under the headings, “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure” and “Item 4. Information

April 24, 2020 EX-13.1

Certification by Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Yan Li, Chief Executive Officer of the Company, certify, pursuant

April 24, 2020 EX-4.6

English translation of the Second Amended and Restated Equity Pledge Agreement among the Registrant’s WFOE, Beijing Niudian and shareholders of Beijing Niudian dated February 27, 2020 (incorporated by reference to Exhibit 4.6 of the Registrant’s Annual Report on Form 20-F filed with the Securities and Exchange Commission on April 24, 2020)

Exhibit 4.6 Second Amended and Restated Equity Pledge Agreement This Second Amended and Restated Equity Pledge Agreement (“Agreement”) is executed on 28 February 2020 in Beijing, the People’s Republic of China (“PRC”) by and among the following Parties: Party A: Beijing Niudian Information Technology Co., Ltd., a limited liability company established and existing under the laws of the PRC, with it

April 24, 2020 EX-12.2

Certification by Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Hardy Peng Zhang, certify that: 1. I have reviewed this annual report on Form 20-F of Niu Technologies; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

April 24, 2020 EX-13.2

Certification by Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.2 Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Hardy Peng Zhang, Chief Financial Officer of the Company, certify,

April 24, 2020 EX-15.1

Consent of KPMG Huazhen LLP

EXHIBIT 15.1 Consent of Independent Registered Public Accounting Firm The Board of Directors Niu Technologies: We consent to the incorporation by reference in the registration statement (No. 333- 229190) on Form S-8 of Niu Technologies of our report dated April 24, 2020, with respect to the consolidated balance sheets of Niu Technologies as of December 31, 2018 and 2019, and the related consolidat

April 24, 2020 EX-2.5

Description of American Depositary Shares of the Registrant (incorporated herein by reference to Exhibit 2.5 to the annual report on Form 20-F filed by the Registrant with the Securities and Exchange Commission on April 24, 2020)

Exhibit 2.5 Description of American Depositary Shares Registered under Section 12 of the Securities Exchange Act of 1934 (the “Exchange Act”) American Depositary Shares (“ADSs”), each representing two Class A ordinary shares of Niu Technologies (the “we,” “us,” “our company” or “our”) are listed and traded on the Nasdaq Global Market. This exhibit contains a description of the rights of the holder

April 24, 2020 EX-4.5

English translation of the Powers of Attorney among the Registrant’s WFOE, Beijing Niudian and shareholders of Beijing Niudian (incorporated by reference to Exhibit 4.5 of the Registrant’s Annual Report on Form 20-F filed with the Securities and Exchange Commission on April 24, 2020)

Exhibit 4.5 Power of Attorney Date: 20 July 2018 I, the undersigned, Yi’nan Li, a citizen of the People’s Republic of China (“PRC”) with Identification Card No.: ******, and a holder of 5.00% of the entire registered capital (“My Shareholding”) in Beijing Niudian Technology Co., Ltd. (“Domestic Company”), hereby irrevocably authorize Niu Technologies (“Cayman Company”) to exercise the following ri

April 24, 2020 EX-4.8

English translation of the Second Amended and Restated Exclusive Option Agreement among the Registrant’s WFOE, Beijing Niudian and shareholders of Beijing Niudian dated February 27, 2020 (incorporated by reference to Exhibit 4.8 of the Registrant’s Annual Report on Form 20-F filed with the Securities and Exchange Commission on April 24, 2020)

Exhibit 4.8 Second Amended and Restated Exclusive Option Agreement This Second Amended and Restated Exclusive Option Agreement (“Agreement”) is executed on 28 February 2020, in Beijing, the People’s Republic of China (“PRC”), by and among the following Parties: Party A: Niu Technologies, a company established and existing under the laws of the Cayman Islands. Party B: Yi’nan Li, a PRC citizen, wit

April 24, 2020 20-F

- 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019. OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

April 24, 2020 EX-12.1

Certification by Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Yan Li, certify that: 1. I have reviewed this annual report on Form 20-F of Niu Technologies; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the

April 24, 2020 EX-2.6

Description of Ordinary Shares of the Registrant (incorporated herein by reference to Exhibit 2.6 to the annual report on Form 20-F filed by the Registrant with the Securities and Exchange Commission on April 24, 2020)

Exhibit 2.6 Description of Rights of Class A Ordinary Shares Registered under Section 12 of the Securities Exchange Act of 1934 (the “Exchange Act”) In connection with our initial public offering, but not for trading, our Class A ordinary shares are registered under Section 12(b) of the Exchange Act. This exhibit contains a description of the rights of the holders of Class A ordinary shares. Descr

April 22, 2020 6-K

NIU / Niu Technologies 6-K - Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2020 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 1 Building, No. 195 Huilongguan East Road, Changping District, Beijing 102208 People’s Republic of China (Address of principal

April 22, 2020 EX-99.1

NIU Offers a New E-bicycle in China Market

Exhibit 99.1 NIU Offers a New E-bicycle in China Market Beijing, Apr 22, 2020 - NIU Technologies (“NIU”, or “the company”) (NASDAQ: NIU), the world’s leading provider of smart urban mobility solutions, announced that the company will host an online product launch on May 8th 2020 to release MQi2, a brand new e-bicycle model under MQi series in China. The MQi2 is NIU’s flagship product under the new

March 17, 2020 6-K

NIU / Niu Technologies 6-K - Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2020 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 10 Wangjing Street, Building A, 11/F Chaoyang District, Beijing 100102 People’s Republic of China (Address of principal executi

March 17, 2020 EX-99.1

Niu Technologies Announces Fourth Quarter and Full Year 2019 Financial Results — Fourth Quarter Total volume of e-scooter sales up 13.5% year over year — Fourth Quarter Revenues of RMB 536.1 million, up 25.4% year over year — Fourth Quarter Net incom

Exhibit 99.1 Niu Technologies Announces Fourth Quarter and Full Year 2019 Financial Results — Fourth Quarter Total volume of e-scooter sales up 13.5% year over year — Fourth Quarter Revenues of RMB 536.1 million, up 25.4% year over year — Fourth Quarter Net income of RMB 60.7 million, compared to net loss of RMB 32.0 million in the fourth quarter of last year — Full Year Total volume of e-scooter

January 16, 2020 SC 13G/A

NIU / Niu Technologies / Hu Token Yilin - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to § 240.

January 16, 2020 EX-99.A

Joint Filing Agreement Joint Filing Agreement (incorporated by reference to Exhibit A to Schedule 13G/A filed on January 16, 2020 by the reporting persons with the United States Securities and Exchange Commission)

EXHIBIT A JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13G referred to below) on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the ordinary shares, par value of $0.

November 26, 2019 6-K

NIU / Niu Technologies 6-K - Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2019 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 10 Wangjing Street, Building A, 11/F Chaoyang District, Beijing 100102 People’s Republic of China (Address of principal exec

November 26, 2019 EX-99.1

Niu Technologies Announces Third Quarter 2019 Financial Results — Third Quarter Total volume of e-scooter sales up 23.5% year over year — Third Quarter Revenues of RMB 654.5 million, up 32.7% year over year — Third Quarter net income of RMB 66.4 mill

Exhibit 99.1 Niu Technologies Announces Third Quarter 2019 Financial Results — Third Quarter Total volume of e-scooter sales up 23.5% year over year — Third Quarter Revenues of RMB 654.5 million, up 32.7% year over year — Third Quarter net income of RMB 66.4 million, compared to net loss of RMB 2.2 million in the third quarter of last year BEIJING, China, Nov. 25, 2019 (GLOBE NEWSWIRE) — Niu Techn

August 23, 2019 6-K

NIU / Niu Technologies 6-K - Current Report of Foreign Issuer - 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2019 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 10 Wangjing Street, Building A, 11/F Chaoyang District, Beijing 100102 People’s Republic of China (Address of principal execut

August 23, 2019 EX-99.1

Niu Technologies Announces Second Quarter 2019 Financial Results — Second Quarter Total volume of e-scooter sales up 13.8% year over year — Second Quarter Revenues of RMB 530.5 million, up 38.1% year over year — Second Quarter net income of RMB 51.0

Exhibit 99.1 Niu Technologies Announces Second Quarter 2019 Financial Results — Second Quarter Total volume of e-scooter sales up 13.8% year over year — Second Quarter Revenues of RMB 530.5 million, up 38.1% year over year — Second Quarter net income of RMB 51.0 million, compared to net loss of RMB 253.0 million in the second quarter of last year BEIJING, China, Aug. 23, 2019 (GLOBE NEWSWIRE) — Ni

May 14, 2019 6-K

NIU / Niu Technologies 6-K Current Report of Foreign Issuer 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2019 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 10 Wangjing Street, Building A, 11/F Chaoyang District, Beijing 100102 People’s Republic of China (Address of principal executive

May 14, 2019 EX-99.1

Niu Technologies Announces First Quarter 2019 Financial Results — First Quarter Total volume of e-scooter sales up 75.7% year over year — First Quarter Revenues of RMB 355.2 million, up 105.5% year over year — First Quarter net income of RMB 12.0 mil

Exhibit 99.1 Niu Technologies Announces First Quarter 2019 Financial Results — First Quarter Total volume of e-scooter sales up 75.7% year over year — First Quarter Revenues of RMB 355.2 million, up 105.5% year over year — First Quarter net income of RMB 12.0 million, up RMB 73.9 million year over year BEIJING, China, May 13, 2019 — Niu Technologies (“Niu”, or “the Company”) (NASDAQ: NIU), the wor

April 25, 2019 EX-12.1

Certification by Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 Certification by the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Yan Li, certify that: 1. I have reviewed this annual report on Form 20-F of Niu Technologies; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the

April 25, 2019 EX-13.1

Certification by Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 Certification by the Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Yan Li, Chief Executive Officer of the Company, certify, pursuant

April 25, 2019 EX-15.2

Date: April 25, 2019

EXHIBIT 15.2 Date: April 25, 2019 Niu Technologies No. 10 Wangjing Street, Building A, 11/F, Chaoyang District, Beijing 100102 People’s Republic of China Dear Sir/Madam: We hereby consent to the use of our name and the summary of our opinion under the headings, “Item 3. Key Information—D. Risk Factors—Risks Related to Our Corporate Structure” and “Item 4. Information on the Company—C. Organization

April 25, 2019 EX-15.1

Consent of KPMG Huazhen LLP

EXHIBIT 15.1 Consent of Independent Registered Public Accounting Firm The Board of Directors Niu Technologies: We consent to the incorporation by reference in the registration statement (No. 333- 229190) on Form S-8 of Niu Technologies of our report dated April 25, 2019, with respect to the consolidated balance sheets of Niu Technologies as of December 31, 2017 and 2018, and the related consolidat

April 25, 2019 20-F

NIU / Niu Technologies 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018. OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

April 25, 2019 EX-4.13

Manufacturing Cooperation Agreement Between Jiangsu Xiaoniu Diandong Technology Co., Ltd. and Changzhou Shanqi Motorcycle Co., Ltd. dated December 1, 2018 (incorporated by reference to Exhibit 4.13 of the Registrant’s Annual Report on Form 20-F (file no. 001-38696) filed with the Securities and Exchange Commission on April 25, 2019)

Exhibit 4.13 MANUFACTURING COOPERATION AGREEMENT between Jiangsu Xiaoniu Diandong Technology Co., Ltd. (江苏小牛电动科技有限公司) and Changzhou Shanqi Motorcycle Co., Ltd. (常州山崎摩托车有限公司) Dated: December 1, 2018 Manufacturing Cooperation Agreement This Manufacturing Cooperation Agreement (this “Agreement”), dated as of December 1, 2018, is made by and between: Jiangsu Xiaoniu Diandong Technology Co., Ltd. (江苏小牛

April 25, 2019 EX-13.2

Certification by Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.2 Certification by the Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the Annual Report of Niu Technologies (the “Company”) on Form 20-F for the year ended December 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Hardy Peng Zhang, Chief Financial Officer of the Company, certify,

April 25, 2019 EX-12.2

Certification by Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 Certification by the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Hardy Peng Zhang, certify that: 1. I have reviewed this annual report on Form 20-F of Niu Technologies; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

April 25, 2019 EX-4.14

Development Collaboration Agreement Between the Registrant and Volkswagen Aktiengesellschaft dated March 15, 2019 (incorporated by reference to Exhibit 4.14 of the Registrant’s Annual Report on Form 20-F (file no. 001-38696) filed with the Securities and Exchange Commission on April 25, 2019)

Exhibit 4.14 DATED March 15, 2019 DEVELOPMENT COLLABORATION AGREEMENT between NIU TECHNOLOGIES and VOLKSWAGEN AKTIENGESELLSCHAFT This agreement is dated Parties (1) Niu Technologies, a company incorporated in Cayman Islands with registration number 293433, whose registered office is at Maples Corporate Services Limited at PO Box 309, Ugland House, Grand Cayman, KY1-1104, Cayman Islands (“NIU”); an

March 18, 2019 6-K

NIU / Niu Technologies 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2019 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 10 Wangjing Street, Building A, 11/F Chaoyang District, Beijing 100102 People’s Republic of China (Address of principal executi

March 18, 2019 EX-99.1

Niu Technologies Announces Fourth Quarter and Full Year 2018 Financial Results — Fourth Quarter Total volume of e-scooter sales up 77.9% year over year — Fourth Quarter Total net revenues of RMB 427.5 million, up 95.0% year over year — Full Year Tota

Exhibit 99.1 Niu Technologies Announces Fourth Quarter and Full Year 2018 Financial Results — Fourth Quarter Total volume of e-scooter sales up 77.9% year over year — Fourth Quarter Total net revenues of RMB 427.5 million, up 95.0% year over year — Full Year Total volume of e-scooter sales up 79.2% year over year — Full Year Total net revenues of RMB 1,477.8 million, up 92.1% year over year BEIJIN

February 12, 2019 SC 13D

NIU / Niu Technologies / Ggv Capital V L.p. - SC 13D Activist Investment

SC 13D SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No.

February 12, 2019 EX-99.4

POWER OF ATTORNEY Approval by the Managing Directors of GGV Capital V L.L.C. December 17, 2018

EX-99.4 EXHIBIT 4 POWER OF ATTORNEY Approval by the Managing Directors of GGV Capital V L.L.C. December 17, 2018 A meeting of GGV Capital V L.L.C. (the “LLC”), the general partner of GGV Capital V L.P. and GGV Capital V Entrepreneurs Fund L.P. (together, the “Funds”) was held in Menlo Park, California, on December 17, 2018. Attending the meeting in person were Hans Tung, Glenn Solomon, and Jeff Ri

February 12, 2019 EX-99.A

Joint Filing Agreement (incorporated by reference to Exhibit A to Schedule 13G filed on February 12, 2019 by the reporting persons with the United States Securities and Exchange Commission)

EXHIBIT A JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13G referred to below) on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the ordinary shares, par value of $0.

February 12, 2019 EX-99.1

JOINT FILING STATEMENT

EX-99.1 EXHIBIT 1 JOINT FILING STATEMENT I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the ownership by each of the undersigned of Class A Ordinary Shares of Niu Technologies is filed on behalf of each of the undersigned. Dated: February 11, 2019 GGV CAPITAL V L.P. GGV CAPITAL V ENTREPRENEURS FUND L.P. BY: GGV CAPITAL V L.L.

February 12, 2019 SC 13G

NIU / Niu Technologies / Glory Achievement Fund Ltd - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to § 240.

January 30, 2019 SC 13G

NIU / Niu Technologies / Hu Token Yilin - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) Information to Be Included in Statements Filed Pursuant to § 240.

January 30, 2019 EX-99.A

JOINT FILING AGREEMENT

EXHIBIT A JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13G referred to below) on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the ordinary shares, par value of $0.

January 11, 2019 EX-4.3

Deposit Agreement dated October 18, 2018 among the Registrant, the depositary and holder of the American Depositary Receipts (incorporated by reference to Exhibit 4.3 of the Registrant’s registration statement on Form S-8 (file no. 333-229190), as amended, filed with the Securities and Exchange Commission on January 11, 2019)

Exhibit 4.3 DEPOSIT AGREEMENT by and among NIU TECHNOLOGIES and CITIBANK, N.A., as Depositary, and THE HOLDERS AND BENEFICIAL OWNERS OF AMERICAN DEPOSITARY SHARES ISSUED HEREUNDER Dated as of October 18, 2018 TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 Section 1.1 “ADS Record Date” 1 Section 1.2 “Affiliate” 1 Section 1.3 “American Depositary Receipt(s)”, “ADR(s)” and “Receipt(s)” 1 Section 1.4 “Amer

January 11, 2019 S-8

NIU / Niu Technologies S-8

As filed with the Securities and Exchange Commission on January 11, 2019 Registration No.

November 20, 2018 EX-99.1

Niu Technologies Announces Third Quarter 2018 Financial Results — Total volume of e-scooter sales up 76.3% year over year — Total net revenues of RMB493.2 million, up 86.1% year over year — Net loss of RMB2.2 million, improved by RMB37.1 million year

Exhibit 99.1 Niu Technologies Announces Third Quarter 2018 Financial Results — Total volume of e-scooter sales up 76.3% year over year — Total net revenues of RMB493.2 million, up 86.1% year over year — Net loss of RMB2.2 million, improved by RMB37.1 million year over year — Adjusted net income1 of RMB4.9 million, improved by RMB16.5 million year over year — Urban mobility market remains robust BE

November 20, 2018 6-K

NIU / Niu Technologies 6-K (Current Report of Foreign Issuer)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2018 Commission File Number: 001-38696 NIU TECHNOLOGIES No. 10 Wangjing Street, Building A, 11/F Chaoyang District, Beijing 100102 People’s Republic of China (Address of principal exec

October 19, 2018 424B4

7,000,000 American Depositary Shares Niu Technologies Representing 14,000,000 Class A Ordinary Shares

Use these links to rapidly review the document TABLE OF CONTENTS NIU TECHNOLOGIES Table of Contents Filed pursuant to Rule 424(b)(4) Registration No.

October 18, 2018 FWP

NIU TECHNOLOGIES

QuickLinks - Click here to rapidly navigate through this document Issuer Free Writing Prospectus Filed pursuant to Rule 433 Registration No.

October 18, 2018 F-1/A

As filed with the Securities and Exchange Commission on October 18, 2018

Use these links to rapidly review the document TABLE OF CONTENTS NIU TECHNOLOGIES As filed with the Securities and Exchange Commission on October 18, 2018 Registration No.

October 16, 2018 CORRESP

NIU / Niu Technologies CORRESP

NIU TECHNOLOGIES October 16, 2018 VIA EDGAR Mr. J. Nolan McWilliams Ms. Julie Griffith Mr. Lyn Shenk Ms. Melissa Gilmore Division of Corporation Finance U.S. Securities and Exchange Commission 100 F Street, NE Washington, D.C. 20549 Re: Niu Technologies (CIK No. 0001744781) Registration Statement on Form F-1 (File No. 333-227497) Registration Statement on Form 8-A (File No. 001-38696) Dear Ladies

October 16, 2018 EX-1.1

Form of Underwriting Agreement

Exhibit 1.1 8,300,000 AMERICAN DEPOSITARY SHARES REPRESENTING 16,600,000 CLASS A ORDINARY SHARES, PAR VALUE US$0.0001 PER SHARE NIU TECHNOLOGIES UNDERWRITING AGREEMENT , 2018 CREDIT SUISSE SECURITIES (USA) LLC CITIGROUP GLOBAL MARKETS INC. c/o Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, N.Y. 10010-3629 c/o Citigroup Global Markets Inc. 388 Greenwich Street New York, NY 10013

October 16, 2018 F-1/A

As filed with the Securities and Exchange Commission on October 16, 2018

QuickLinks - Click here to rapidly navigate through this document As filed with the Securities and Exchange Commission on October 16, 2018 Registration No.

October 16, 2018 CORRESP

NIU / Niu Technologies CORRESP

Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, NY 10010 U.S.A. Citigroup Global Markets Inc. 388 Greenwich Street New York, NY 10013 U.S.A. October 16, 2018 VIA EDGAR Mr. J. Nolan McWilliams Ms. Julie Griffith Mr. Lyn Shenk Ms. Melissa Gilmore Division of Corporation Finance U.S. Securities and Exchange Commission 100 F Street, NE Washington, D.C., 20549 Re: Niu Technologies (C

October 15, 2018 F-1/A

As filed with the Securities and Exchange Commission on October 15, 2018

Use these links to rapidly review the document TABLE OF CONTENTS NIU TECHNOLOGIES Table of Contents As filed with the Securities and Exchange Commission on October 15, 2018 Registration No.

October 15, 2018 CORRESP

NIU / Niu Technologies CORRESP

SKADDEN, ARPS, SLATE, MEAGHER & FLOM 世達國際律師事務所 AFFILIATE OFFICES PARTNERS 42/F, EDINBURGH TOWER, THE LANDMARK CHRISTOPHER W.

October 12, 2018 EX-99.(A)

DEPOSIT AGREEMENT by and among NIU TECHNOLOGIES CITIBANK, N.A., as Depositary, THE HOLDERS AND BENEFICIAL OWNERS OF AMERICAN DEPOSITARY SHARES ISSUED HEREUNDER Dated as of [date], 2018 TABLE OF CONTENTS

DEPOSIT AGREEMENT by and among NIU TECHNOLOGIES and CITIBANK, N.A., as Depositary, and THE HOLDERS AND BENEFICIAL OWNERS OF AMERICAN DEPOSITARY SHARES ISSUED HEREUNDER Dated as of [date], 2018 TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 Section 1.1 “ADS Record Date” 1 Section 1.2 “Affiliate” 1 Section 1.3 “American Depositary Receipt(s)”, “ADR(s)” and “Receipt(s)” 1 Section 1.4 “American Depositary

October 12, 2018 F-6/A

THLEY / THALES F-6/A

As filed with the Securities and Exchange Commission on October 12, 2018 Registration No.

October 9, 2018 CORRESP

NIU / Niu Technologies CORRESP

SKADDEN, ARPS, SLATE, MEAGHER & FLOM 世達國際律師事務所 AFFILIATE OFFICES PARTNERS 42/F, EDINBURGH TOWER, THE LANDMARK CHRISTOPHER W.

October 9, 2018 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 NIU TECHNOLOGIES (Exact name of registrant as s

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 NIU TECHNOLOGIES (Exact name of registrant as specified in its charter) Cayman Islands Not Applicable (State of incorporation or organization) (I.R.S. Employer Identification No.) No. 10 Wangjing S

October 9, 2018 EX-4.2

Registrant's Specimen Certificate for Class A Ordinary Shares

Exhibit 4.2 NIU TECHNOLOGIES Number Class A Ordinary Share(s) Incorporated under the laws of the Cayman Islands Share capital is US$500,000 divided into (i) 4,900,000,000 Class A Ordinary Shares of a par value of US$0.0001 each, (ii) 50,000,000 Class B Ordinary Shares of a par value of US$0.0001 each and (iii) 50,000,000 Shares of a par value of US$0.0001 each of such class or classes (however des

October 9, 2018 F-1/A

As filed with the Securities and Exchange Commission on October 9, 2018

Use these links to rapidly review the document TABLE OF CONTENTS NIU TECHNOLOGIES Table of Contents As filed with the Securities and Exchange Commission on October 9, 2018 Registration No.

October 4, 2018 EX-99.(D)

-2-

October 4, 2018 Citibank, N.A. – ADR Department 388 Greenwich Street New York, New York 10013 Ladies and Gentlemen: We refer to the Registration Statement on Form F-6 (the “Registration Statement”) to be filed with the Securities and Exchange Commission (the “SEC”) by the legal entity to be created by the Deposit Agreement (as hereinafter defined) for the purpose of registering under the United St

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