DSWL / Deswell Industries, Inc. - Документы SEC, Годовой отчет, Доверенное заявление

Десвелл Индастриз, Инк.
US ˙ NasdaqGM ˙ VG2506391011

Основная статистика
LEI 529900C4GZKVGSEF2O27
CIK 946936
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 Deswell Industries, Inc.
SEC Filings (Chronological Order)
На этой странице представлен полный хронологический список документов SEC, за исключением документов о собственности, которые мы предоставляем в других местах.
July 29, 2025 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. (the “Company”) 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessa

July 29, 2025 EX-97.1

DESWELL INDUSTRIES, INC. COMPENSATION RECOVERY POLICY (Adopted and Approved on October 2, 2023)

Exhibit 97.1 DESWELL INDUSTRIES, INC. COMPENSATION RECOVERY POLICY (Adopted and Approved on October 2, 2023) 1. Purpose. Deswell Industries, Inc. (the “Company”) has adopted this Compensation Recovery Policy (“Policy”) to comply with Section 10D of the Securities Exchange Act of 1934, as amended (“Exchange Act”) and Rule 10D-1 of the Exchange Act, which require the recovery of certain Incentive-Ba

July 29, 2025 EX-2.2

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

EXHIBIT 2.2 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of March 31, 2025, Deswell Industries, Inc. (“Deswell,” “Company,” “our,” “we”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: common shares. The general terms and provisions of the Company’s common shares ar

July 29, 2025 20-F

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (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 March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHAN

July 29, 2025 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. Tortola, British Virgin Islands We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. and its subsidiaries (the “Company”) of our report dated July 29, 2025, rel

July 29, 2025 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. (the “Company”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fa

July 29, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 29, 2025 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edifici

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 29, 2025 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

July 29, 2025 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2025 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

June 18, 2025 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 18, 2025 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edifici

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 18, 2025 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

May 30, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 10B, Edificio Associacao Industrial De Macau,32 Rua

May 12, 2025 CORRESP

May 12, 2025

May 12, 2025 United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

April 21, 2025 CORRESP

April 21, 2025

April 21, 2025 United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

November 22, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 22, 2024 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 22, 2024 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive

November 15, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 15, 2024 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 15, 2024 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive

September 30, 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 September 30, 2024 Commission File Number: 001-33900 DESWELL

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 September 30, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32 Rua do Comandante Mata e Oliveir

August 9, 2024 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. (the “Company) 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessar

August 9, 2024 EX-11.2

CODE OF BUSINESS CONDUCT AND ETHICS TABLE OF CONTENTS

Exhibit 11.2 CODE OF BUSINESS CONDUCT AND ETHICS TABLE OF CONTENTS Preface - 1 - 1. Compliance with laws, rules, regulations and related company policies - 1 - 1.1 False Statements - 1 - 1.2 Improper Payments and Gifts; Loans - 1 - 1.3 Recording of Financial and other Transactions - 2 - 1.4 Disclosure Controls and Procedures - 2 - 1.5 Preservation of Records - 2 - 1.6 Securities and Insider Tradin

August 9, 2024 EX-2.2

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

EXHIBIT 2.2 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of March 31, 2024, Deswell Industries, Inc. (“Deswell,” “Company,” “our,” “we”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: common shares. The general terms and provisions of the Company’s common shares ar

August 9, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For August 9, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Regist

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For August 9, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (

August 9, 2024 20-F

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (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 March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHAN

August 9, 2024 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. (the “Company); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fac

August 9, 2024 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. Tortola, British Virgin Islands We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the “Company”) of our report dated August 9, 2024, relating to the consoli

August 9, 2024 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

August 9, 2024 EX-97.1

DESWELL INDUSTRIES, INC. COMPENSATION RECOVERY POLICY (Adopted and Approved on October 2, 2023)

Exhibit 97.1 DESWELL INDUSTRIES, INC. COMPENSATION RECOVERY POLICY (Adopted and Approved on October 2, 2023) 1. Purpose. Deswell Industries, Inc. (the “Company”) has adopted this Compensation Recovery Policy (“Policy”) to comply with Section 10D of the Securities Exchange Act of 1934, as amended (“Exchange Act”) and Rule 10D-1 of the Exchange Act, which require the recovery of certain Incentive-Ba

July 31, 2024 NT 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 SEC FILE NUMBER 001-33900 CUSIP NUMBER 250639 10 1 NOTIFICATION OF LATE FILING (Check one): ☐ Form 10-K ☒ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: March 31, 2024 ☐ Transition Report on Form 10-K ☐Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Trans

June 27, 2024 SC 13D/A

DSWL / Deswell Industries, Inc. / Lau Wai Ming - AMENDMENT NO. 2 TO SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authorize

June 20, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 20, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Registr

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 20, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (A

June 12, 2024 SC 13D/A

DSWL / Deswell Industries, Inc. / Lau Wai Ming - AMENDMENT NO. 1 TO SCHEDULE 13D Activist Investment

SC 13D/A 1 ea0207644-13da1mingdeswell.htm AMENDMENT NO. 1 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 A

May 30, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Deswell Industries, Inc. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 10B, Edificio Associacao Industrial De Macau,32 Rua

May 29, 2024 SC 13D

DSWL / Deswell Industries, Inc. / Lau Wai Ming - SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authorized to Receive Notice

February 26, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For February 26, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Reg

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For February 26, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PR

February 22, 2024 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For February 22, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Reg

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For February 22, 2024 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PR

December 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 December 21, 2023 Commission File Number: 001-33900 DESWELL

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 December 21, 2023 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante Mata e Olive

December 6, 2023 CORRESP

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CARRIE LEAHY [email protected] 734-930-0120 December 6, 2023 BODMAN PLC SUITE 400 201 SOUTH DIVISION STREET ANN ARBOR, MICHIGAN 48104734-930-2494 FAX 734-761-3780 United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Ms. Jennifer Gowetski Mr. Andrew Mew Re: Deswell Industries, Inc. Amendment No. 1 to Form 20-F for t

November 17, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 17, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 17, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive

September 28, 2023 20-F/A

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 (g) OF THE SECURITIES EXCHANGE ACT OF 1934 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 O

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 (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 March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF T

September 28, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For September 28, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Ed

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For September 28, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive

September 28, 2023 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F, as amended by Amendment No. 1 thereto, of Deswell Industries, Inc. (the “Company”); 2. Based on my knowledge, this report does not contain any untrue statement of a mate

September 28, 2023 EX-99.1

SUPPLEMENTAL Submission Pursuant to Item 16I(a) of Form 20-F

Exhibit 99.1 SUPPLEMENTAL Submission Pursuant to Item 16I(a) of Form 20-F Deswell Industries, Inc. (“Company,” “our,” “us,” or “we”) is submitting via EDGAR the following information as required under Item 16I(a) of Form 20-F. On August 29, 2022, we were conclusively listed by the SEC as a Commission-Identified Issuer under the Holding Foreign Companies Accountable Act (the “HFCAA”) as having file

September 28, 2023 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F, as amended by Amendment No. 1 thereto, for the year ended March 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersig

September 28, 2023 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F, as amended by Amendment No. 1 thereto, of Deswell Industries, Inc. (the “Company”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact

September 28, 2023 CORRESP

September 28, 2023

CARRIE LEAHY [email protected] 734-930-0120 September 28, 2023 BODMAN PLC SUITE 400 201 SOUTH DIVISION STREET ANN ARBOR, MICHIGAN 48104 734-930-2494 FAX 734-761-3780 United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Mr. Jimmy McNamara Ms. Jennifer Gowetski Re: Deswell Industries Inc. Form 20-F for the Fiscal Yea

July 28, 2023 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 28, 2023 EX-2.2

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 2.2 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of March 31, 2023, Deswell Industries, Inc. (“Deswell,” “Company,” “our,” “we”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: common shares. The general terms and provisions of the Company’s common shares ar

July 28, 2023 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECUR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (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 March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHAN

July 28, 2023 6-K

Deswell Announces Filing and Availability of Annual Report on Form 20-F

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 28, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

July 28, 2023 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. Tortola, British Virgin Islands We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the “Company”) of our report dated July 28, 2023, relating to the consolid

July 28, 2023 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. (the “Company”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fa

July 28, 2023 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. (the “Company”); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

June 20, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 20, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edifici

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 20, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

June 16, 2023 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 16, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edifici

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 16, 2023 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

June 16, 2023 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 2023 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC.

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 2023 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of Registrant’s name into English) 10B Edificio Associacao Industrial De Macau 32 Rua do Comandante Mata e Oliveira Macau, Special Admin

May 30, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 10B, Edificio Associacao Industrial De Macau,32 Rua

May 4, 2023 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 33)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

November 18, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 17, 2022 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 17, 2022 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive

October 28, 2022 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 32)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

October 11, 2022 6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 October 11, 2022 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Exact na

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 October 11, 2022 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Exact name of registrant as specified in its charter) British Virgin Islands (Jurisdiction of incorporation or organization) 10B Edificio Associacao Industria

August 11, 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 August 11, 2022 Commission File Number: 001-33900 DESWELL IN

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 August 11, 2022 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant?s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante Mata e Oliveir

July 28, 2022 20-F

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) ?REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (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 March 31, 2022 OR ?TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

July 28, 2022 EX-12.2

Certification of Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 28, 2022 EX-12.1

Certification of Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

July 28, 2022 EX-13.1

Certification Pursuant To 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act Of 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 28, 2022 6-K

Deswell Announces Filing and Availability of Annual Report on Form 20-F

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 28, 2022 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

July 28, 2022 EX-15.1

Consent of BDO China Shu Lun Pan Certified Public Accountants LLP to incorporation of its report on the Company’s consolidated financial statements into Registrant’s Registration Statements on Form S-8.

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the ?Company?) of our report dated July 28, 2022, relating to the consolidated financial statements, which

July 6, 2022 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

SC 13D/A 1 tm2220392d1sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 31)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Add

June 16, 2022 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 16, 2022 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edifici

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 16, 2022 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

May 31, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter)

SD 1 tm2216938d1sd.htm FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 10B, Edificio Associ

January 28, 2022 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 30)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

November 22, 2021 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 22, 2021 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 22, 2021 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive

August 26, 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 August 26, 2021 Commission File Number: 001-33900 DESWELL IN

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 August 26, 2021 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante Mata e Oliveir

July 28, 2021 20-F/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F/A (Mark one) ? REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (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 March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCH

July 23, 2021 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the ?Company?) on Form 20-F for the year ended March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), the undersigned hereby certify, pursuant to 18 U.S.C

July 23, 2021 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13a-14(a) OR RULE 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

July 23, 2021 20-F

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) ? REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (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 March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHAN

July 23, 2021 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13a-14(a) OR RULE 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 23, 2021 EX-15.1

Consent of BDO China Shu Lun Pan Certified Public Accountants LLP to incorporation of its report on the Company’s consolidated financial statements into Registrant’s Registration Statements on Form S-8.

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the ?Company?) of our report dated July 23, 2021, relating to the consolidated financial statements, which

July 23, 2021 6-K

Deswell Announces Filing and Availability of Annual Report on Form 20-F

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 23, 2021 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

June 9, 2021 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 9, 2021 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 9, 2021 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offic

May 28, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of (Commission (IRS Employer incorporation or organization) File Number) Identification No.) 10B, Edificio Associacao Industrial De Macau,32 Rua

March 19, 2021 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 29)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 29)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

November 10, 2020 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 10, 2020 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive

September 29, 2020 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - FORM 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 28)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

August 20, 2020 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 August 20, 2020 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante Mata e Oliveir

July 24, 2020 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - FORM 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 27)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

July 20, 2020 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 17, 2020 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

July 17, 2020 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13a-14(a) OR RULE 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

July 17, 2020 20-F

- FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one)  REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (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 March 31, 2020 OR  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHAN

July 17, 2020 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13a-14(a) OR RULE 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 s

July 17, 2020 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 17, 2020 EX-15.1

Consent of BDO China Shu Lun Pan Certified Public Accountants LLP to incorporation of its report on the Company’s consolidated financial statements into Registrant’s Registration Statements on Form S-8.

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the “Company”) of our report dated July 17, 2020, relating to the consolidated financial statements, which

June 11, 2020 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 11, 2020 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 10B Edificio Associacao Industrial de Macau 32-36 Rua do Comandante Mata e Oliveira Macau Special Administrative Region, PRC (Address of principal executive offi

May 26, 2020 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 10B, Edificio Associacao Industrial De Macau,32 Rua

March 27, 2020 SC 13D/A

DSWL / Deswell Industries, Inc. / DESWELL INDUSTRIES INC - FORM 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 26)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

November 20, 2019 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 25)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

November 15, 2019 6-K

DSWL / Deswell Industries, Inc. 6-K - Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 15, 2019 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Pursuant to the requirements of the Secur

August 20, 2019 6-K

DSWL / Deswell Industries, Inc. 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 August 20, 2019 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante Mata e Oliveir

July 12, 2019 6-K

DSWL / Deswell Industries, Inc. 6-K - Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 12, 2019 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Pursuant to the requirements of the Securitie

July 12, 2019 20-F

DSWL / Deswell Industries, Inc. 20-F - - FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2019 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHAN

July 12, 2019 EX-15.1

Consent of BDO China Shu Lun Pan Certified Public Accountants LLP to incorporation of its report on the Company’s consolidated financial statements into Registrant’s Registration Statements on Form S-8.

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the “Company”) of our report dated July 12, 2019, relating to the consolidated financial statements, which

July 12, 2019 EX-12.2

Certification of Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 12, 2019 EX-13.1

Certification Pursuant To 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act Of 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2019 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 12, 2019 EX-12.1

Certification of Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

June 11, 2019 6-K

DSWL / Deswell Industries, Inc. 6-K - Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 11, 2019 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Pursuant to the requirements of the Securitie

May 29, 2019 SD

DSWL / Deswell Industries, Inc. SD - - FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 10B, Edificio Associacao Industrial De Macau,32 Rua

May 24, 2019 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 24)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

December 11, 2018 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 23)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

November 15, 2018 6-K

DSWL / Deswell Industries, Inc. DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November15, 2018 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces First Half 2019 Results

October 25, 2018 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 22)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

August 9, 2018 6-K

DSWL / Deswell Industries, Inc. FORM 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 August 9, 2018 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante Mata e Oliveira

July 25, 2018 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 21)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

July 13, 2018 6-K

DSWL / Deswell Industries, Inc. DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 13, 2018 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) DESWELL ANNOUNCES FILING AND AVAILABILITY OF

July 13, 2018 EX-12.1

Certification of Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

July 13, 2018 20-F

DSWL / Deswell Industries, Inc. FORM 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHAN

July 13, 2018 EX-12.2

Certification of Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 13, 2018 EX-15.1

Consent of BDO China Shu Lun Pan Certified Public Accountants LLP to incorporation of its report on the Company’s consolidated financial statements into Registrant’s Registration Statements on Form S-8.

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the “Company”) of our report dated July 13, 2018, relating to the consolidated financial statements, which

July 13, 2018 EX-13.1

Certification Pursuant To 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act Of 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

June 12, 2018 6-K

DSWL / Deswell Industries, Inc. DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 12, 2018 DESWELL INDUSTRIES, INC. (Registrant's name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Pursuant to the requirements of the Securitie

May 29, 2018 EX-1.01

Deswell Industries, Inc. Summary of findings

Exhibit 1.01 Deswell Industries, Inc. Summary of findings Number of suppliers that provide materials that are likely to contain 3TGs/Conflict Minerals 79 Number As a % of the selected suppliers’ purchase volume Response received 67 84.8% Number of suppliers Number of suppliers sourced from Covered Country Tantalum 5 0 Tin 51 0 Gold 24 0 Tungsten 7 0

May 29, 2018 SD

DSWL / Deswell Industries, Inc. FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 10B, Edificio Associacao Industrial De Macau, 32 Ru

February 7, 2018 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

SC 13D/A 1 dswl02061813da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 20)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Addres

November 16, 2017 6-K

DSWL / Deswell Industries, Inc. DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November16, 2017 DESWELL INDUSTRIES, INC. (Registrant's name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces First Half 2018 Results

November 15, 2017 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 19)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

September 21, 2017 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 18)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

August 10, 2017 6-K

Deswell Industries FORM 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 August 10, 2017 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante Mata e Oliveir

July 14, 2017 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 July 14, 2017 DESWELL INDUSTRIES, INC. (Registrant's name in English) 10B Edificio Associacao Industrial De Macau 32 Rua do Comandante Mata e Oliveira Macau, Special Administrative Region, PRC (Address of principal executive offices) I

July 14, 2017 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the ?Company?) on Form 20-F for the year ended March 31, 2017 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), the undersigned hereby certify, pursuant to 18 U.S.C

July 14, 2017 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the “Company”) of our report dated July 14, 2017, relating to the consolidated financial statements, which

July 14, 2017 20-F

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

20-F 1 dswl031720f.htm FORM 20-F UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2017 OR o TRANSITION REPORT PURSUANT TO SECTION 13

July 14, 2017 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

July 14, 2017 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 12, 2017 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 17)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

June 14, 2017 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 16)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

June 12, 2017 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 12, 2017 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Pursuant to the requirements of the Securitie

May 26, 2017 SD

Deswell Industries SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of (Commission (IRS Employer incorporation or organization) File Number) Identification No.) 10B, Edificio Associacao Industrial De Macau,32 Rua

May 26, 2017 EX-1.01

Deswell Industries, Inc. Summary of findings

Exhibit 1.01 Deswell Industries, Inc. Summary of findings Number of suppliers that provide materials that are likely to contain 3TGs/Conflict Minerals 64 Number As a % of the selected suppliers? purchase volume Response received 56 87.5% Number of suppliers Number of suppliers sourced from Covered Country Tantalum 4 0 Tin 33 0 Gold 31 0 Tungsten 10 0 5

April 13, 2017 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 15)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

March 1, 2017 6-K

Deswell Industries FORM 6-K (Current Report of Foreign Issuer)

6-K 1 deswell228176k.htm 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, 2017 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De

November 17, 2016 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

6-K 1 a51462870.htm DESWELL INDUSTRIES, INC. 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 17, 2016 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive o

November 16, 2016 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 14)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

September 23, 2016 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SCHEDULE 13D/A Activist Investment

SC 13D/A 1 dsw91516sc13da.htm SCHEDULE 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 13)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name,

August 18, 2016 6-K

Deswell Industries FORM 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: August, 2016 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante

August 18, 2016 6-K

Deswell Industries FORM 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: August, 2016 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 10B, Edificio Associacao Industrial De Macau No. 32-36 Rua do Comandante

July 29, 2016 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 29, 2016 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Filing and Availability of

July 27, 2016 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 27, 2016 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 27, 2016 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790, 333-171314, and 333-199739) of Deswell Industries, Inc. (the “Company”) of our report dated July 27, 2016, relating to the consolidated financial statements, which

July 27, 2016 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

July 27, 2016 20-F

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2016 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHAN

July 22, 2016 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 12)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

July 6, 2016 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 6, 2016 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Adoption of Semi-Annual Fina

June 24, 2016 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

6-K 1 a51369289.htm DESWELL INDUSTRIES, INC. 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 24, 2016 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offic

May 31, 2016 EX-1.01

Deswell Industries, Inc. Summary of findings

Exhibit 1.01 Deswell Industries, Inc. Summary of findings Number of suppliers that provide materials that are likely to contain 3TGs/Conflict Minerals 140 Number As a % of the selected suppliers? purchase volume Response received 117 86.7% Number of suppliers1 Number of suppliers sourced from Covered Country Tantalum 1 0 Tin 66 0 Gold 30 0 Tungsten 6 0 Notes: 1) Only 65 suppliers disclosed providi

May 31, 2016 SD

Deswell Industries FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 17B Edificio Comercial Rodrigues, 599 Avenida Da Pr

March 11, 2016 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For March 11, 2016 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Third Quarter 2016 Results

February 18, 2016 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

SC 13D/A 1 dswl2161613d.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 11)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address

January 7, 2016 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 10)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Author

November 27, 2015 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 9)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authori

November 12, 2015 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 11, 2015 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Second Quarter 2016 Res

November 2, 2015 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

SC 13D/A 1 sc13da-14751lau.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 8)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Addres

September 4, 2015 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For September 4, 2015 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces First Quarter 2015 Resu

August 17, 2015 6-K

Deswell Industries FORM 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: August, 2015 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant?s name into English) 17B, Edificio Comercial Rodrigues 599 Avenida da Praia Grande, Macao Spe

August 7, 2015 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 7)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authori

July 29, 2015 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 29, 2015 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Filing and Availability of

July 28, 2015 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 28, 2015 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 28, 2015 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

July 28, 2015 20-F

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2015 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1

July 28, 2015 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EX-15.1 5 dswl071520fex151.htm EX-15.1 Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790 and 333-171314) of Deswell Industries, Inc. (the “Company”) of our reports dated July 28, 2015, relating to the consolidated

July 10, 2015 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 6)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authori

June 25, 2015 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 24, 2015 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Change in Record Date for F

June 22, 2015 6-K

Deswell Industries DESWELL INDUSTRIES, INC. 6-K (Current Report of Foreign Issuer)

a51127939.htm FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 22, 2015 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Fourth Quarte

May 28, 2015 SD

Deswell Industries FORM SD

SD 1 dswl052715sd.htm FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 17B Edificio Comercia

May 28, 2015 EX-1.01

Conflict Minerals Report Deswell Industries, Inc. 2014 Calendar Year

Exhibit 1.01 Conflict Minerals Report Deswell Industries, Inc. 2014 Calendar Year This Conflict Minerals Report (this ?Report?) for the calendar year ended December 31, 2014 is filed in accordance with Rule 13p-1 (the ?Rule?) under the Securities Exchange Act of 1934, as amended, and Specialized Disclosure Report on Form SD (?Form SD?). Capitalized terms used in this Report but not defined in this

April 30, 2015 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 5)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authori

February 13, 2015 6-K

DSWL / Deswell Industries, Inc. 6-K - Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For February 13, 2015 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Third Quarter 2015 Resu

February 9, 2015 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 4)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authori

January 8, 2015 6-K

DSWL / Deswell Industries, Inc. 6-K - Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For January 8, 2015 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Second Quarter 2015 Resul

October 31, 2014 S-8

DSWL / Deswell Industries, Inc. S-8 - - FORM S-8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 DESWELL INDUSTRIES, INC. (Exact name of registrant as specified in its charter) British Virgin Islands (State or other jurisdiction of incorporation or organization) None (I.R.S. Employer Identification No.) 17B Edificio Comercial Rodrigues, 599 Avenida da Praia

September 29, 2014 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authori

August 22, 2014 6-K

DSWL / Deswell Industries, Inc. 6-K - Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For August 22, 2014 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces First Quarter 2015 Result

August 11, 2014 6-K

DSWL / Deswell Industries, Inc. 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: August, 2014 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 17B, Edificio Comercial Rodrigues 599 Avenida da Praia Grande, Macao Spe

July 29, 2014 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authori

July 14, 2014 6-K

DSWL / Deswell Industries, Inc. 6-K - Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 14, 2014 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Filing and Availability of

July 11, 2014 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 11, 2014 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, EDWARD SO KIN CHUNG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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 m

July 11, 2014 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 11, 2014 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790 and 333-171314) of Deswell Industries, Inc. (the “Company”) of our reports dated July 11, 2014, relating to the consolidated financial statements and the effectiven

July 11, 2014 20-F

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

OMB APPROVAL OMB Number: 3235-0288 Expires: April 30, 2015 Estimated average burden hours per response.

June 10, 2014 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 10, 2014 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Fourth Quarter 2014 Results

June 2, 2014 EX-1.02

Conflict Minerals Report Deswell Industries, Inc. 2013 Calendar Year

Exhibit 1.02 Conflict Minerals Report Deswell Industries, Inc. 2013 Calendar Year This Report for the calendar year ended December 31, 2013 is filed in accordance with Rule 13p-1 (the “Rule”) under the Securities Exchange Act of 1934, as amended. Capitalized terms used in this Report but not defined in this Report have the meanings given to such terms in the Form SD. In accordance with the Rule, D

June 2, 2014 SD

- FORM SD

SD 1 dswl060214sd.htm FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Deswell Industries, Inc. (Exact name of the registrant as specified in its charter) British Virgin Islands 001-33900 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 17B Edificio Comercia

May 30, 2014 SC 13D/A

DSWL / Deswell Industries, Inc. / LAU PUI HON - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Deswell Industries, Inc. (Name of Issuer) Common shares, no par value (Title of Class of Securities) 250639 10 1 (CUSIP Number) Carrie Leahy Bodman PLC 201 S. Division, Suite 400 Ann Arbor, MI 48104 (Name, Address and Telephone Number of Person Authori

February 25, 2014 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For February 25, 2014 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Third Quarter 2014 Resu

November 29, 2013 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 29, 2013 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Names Edward So Kin Chung as Chie

November 13, 2013 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 13, 2013 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Second Quarter 2014 Res

August 30, 2013 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For August 30, 2013 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces First Quarter 2014 Result

August 12, 2013 6-K

Current Report of Foreign Issuer - FORM 6-K

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July 17, 2013 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 17, 2013 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Filing and Availability of

July 16, 2013 20-F

- FORM 20-F

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July 16, 2013 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 16, 2013 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 16, 2013 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, FRANKI S. F. TSE, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 16, 2013 EX-15.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.2 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790 and 333-171314) of Deswell Industries, Inc. (the “Company”) of our report dated August 2, 2011, relating to the consolidated financial statements which appear in th

July 16, 2013 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790 and 333-171314) of Deswell Industries, Inc. (the “Company”) of our reports dated July 16, 2013, relating to the consolidated financial statements and the effectiven

June 13, 2013 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 13, 2013 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Fourth Quarter 2013 Results

February 5, 2013 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For February 5, 2013 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Third Quarter 2013 Resul

November 16, 2012 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 16, 2012 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Second Quarter 2013 Res

August 15, 2012 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For August 15, 2012 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces First Quarter 2013 Result

August 13, 2012 6-K

Current Report of Foreign Issuer - FORM 6-K

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July 23, 2012 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 23, 2012 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Filing and Availability of

July 20, 2012 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(a) OR RULE 15D-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(a) OR RULE 15D-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

July 20, 2012 EX-15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790 and 333-171314) of Deswell Industries, Inc. (the “Company”) of our reports dated July 20, 2012, relating to the consolidated financial statements and the effectiven

July 20, 2012 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C

July 20, 2012 20-F

- 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark one) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2012 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT

July 20, 2012 EX-15.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.2 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. 17B, Edificio Commercial Rodrigues, 599 Avenida da Praia Grande, Macao, Special Administrative Region, PRC We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790 and 333-171314) of Deswell Industries, Inc. of our report

July 20, 2012 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(a) OR RULE 15D-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(a) OR RULE 15D-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, FRANKI S. F. TSE, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

June 18, 2012 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

6-K 1 a50314020.htm DESWELL INDUSTRIES, INC. 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 18, 2012 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offic

March 14, 2012 EX-1

Deswell Announces $4 Million Stock Buyback Plan

Exhibit 1 Deswell Announces $4 Million Stock Buyback Plan MACAO-(BUSINESS WIRE)-March 14, 2012-Deswell Industries, Inc.

March 14, 2012 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 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, 2012 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 17B, Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao Spec

March 13, 2012 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 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 2012 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant’s name into English) 17B, Edificio Comercial Rodrigues 599 Avenida da Praia Grande, Macao Speci

March 7, 2012 6-K

Current Report of Foreign Issuer - DESWELL INDUSTRIES, INC. 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For March 7, 2012 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Third Quarter Results - Com

November 30, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 30, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For November 30, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Second Quarter Results

September 8, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For September 8, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For September 8, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces First Quarter Results -

August 22, 2011 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, 2011 Commission File Number: 001-3

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August 3, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For August 3, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edific

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For August 3, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Filing and Availability of

August 2, 2011 20-F

FORM 20-F

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August 2, 2011 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, HERMAN WONG, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

August 2, 2011 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, FRANKI S. F. TSE, certify that: 1. I have reviewed this Annual Report on Form 20-F of Deswell Industries, Inc. 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

August 2, 2011 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the “Company”) on Form 20-F for the year ended March 31, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the

August 2, 2011 EX-14.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 14.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738, 333-147790 and 333-171314) of Deswell Industries, Inc. (the ?Company?) of our reports dated August 2, 2011, relating to the consolidated financial statements and the effective

June 29, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 29, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edifici

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 29, 2011 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Fourth Quarter Results - Co

April 1, 2011 6-K

Form 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For April 1, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B, Edi

Form 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 For April 1, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B, Edificio Comercial Rodrigues 599 Avenida Da Praia Grande Macao, China (Address of principal executive offices) Deswell Industries Inc. Appoints New Chief

March 10, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For March 10, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edific

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For March 10, 2011 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Third Quarter Results - Co

December 21, 2010 S-8

As Filed with the Securities and Exchange Commission on December 21, 2010

As Filed with the Securities and Exchange Commission on December 21, 2010 Registration No.

December 15, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For December 15, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For December 15, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Second Quarter Results

September 9, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For September 9, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For September 9, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces First Quarter Results F

August 18, 2010 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

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, 2010 Commission File Number: 001-33900 DESWELL INDUSTRIES, INC. (Translation of registrant?s name into English) 17B, Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao Spe

August 16, 2010 6-K

2003 Stock Option Plan of Deswell Industries, Inc. (as adopted August 20, 2003 and amended August 1, 2005, August 17, 2007 and August 13, 2010) (incorporated by reference to Annex A to the Company’s Proxy Statement furnished to the SEC on Form 6-K on August 16, 2010).

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July 29, 2010 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) o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2010 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECUR

July 29, 2010 EX-13.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Deswell Industries, Inc. (the ?Company?) on Form 20-F for the year ended March 31, 2010 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), the undersigned hereby certify, pursuant to 18 U.S.C

July 29, 2010 EX-12.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER REQUIRED BY RULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, FRANKI S. F. TSE, certify that: 1. I have reviewed this annual report on Form 20-F of Deswell Industries, Inc. 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

July 29, 2010 EX-14.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 14.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deswell Industries, Inc. We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-110236, 333-130738 and 333-147790) of Deswell Industries, Inc. (the ?Company?) of our reports dated July 29, 2010, relating to the consolidated financial statements and the effectiveness of the C

July 29, 2010 EX-1.1

TERRITORY OF THE BRITISH VIRGIN ISLANDS THE BVI BUSINESS COMPANIES ACT, 2004 AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION DESWELL INDUSTRIES, INC. Incorporated on December 2, 1993 Amended and Restated on 13th day of December, 2007 Amen

Exhibit 1.1 TERRITORY OF THE BRITISH VIRGIN ISLANDS THE BVI BUSINESS COMPANIES ACT, 2004 AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION OF DESWELL INDUSTRIES, INC. Incorporated on December 2, 1993 Amended and Restated on 13th day of December, 2007 Amended and Restated on 30th day of March, 2010 INCORPORATED IN THE BRITISH VIRGIN ISLANDS TERRITORY OF THE BRITISH VIRGIN ISLANDS AMENDED

July 29, 2010 EX-12.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934

Exhibit 12.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER REQUIRED BYRULE 13A-14(A) OR RULE 15D-14(A) UNDER THE SECURITIES EXCHANGE ACT OF 1934 I, BETTY LAM, certify that: 1. I have reviewed this annual report on Form 20-F of Deswell Industries, Inc. 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 sta

July 6, 2010 6-K/A

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 6, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edific

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For July 6, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) EXPLANATORY NOTE This Form 6-K/A of Deswell

June 23, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 23, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edifici

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For June 23, 2010 DESWELL INDUSTRIES, INC. (Registrant?s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Fourth Quarter Results - An

March 31, 2010 8-A12B/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A/A (Amendment No. 1(1)) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 DESWELL INDUSTRIES, INC. (Exact name o

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March 31, 2010 EX-1.2

Amendment to Regulation 6.15 of registrant’s Articles of Association as filed with the Registrar of Corporate Affairs of the British Virgin Islands on March 26, 2010 (incorporated by reference to Exhibit 1.2 to registrant’s Amendment No. 1 to Registration Statement on Form 8-A filed with the SEC on March 31, 2010).

Exhibit 1.2 DESWELL INDUSTRIES, INC. CERTIFIED TRUE COPY OF RESOLUTION ADOPTED BY THE DIRECTORS PURSUANT TO THE MEMORANDUM AND ARTICLES OF ASSOCIATION OF THE COMPANY ON THE 9TH DAY OF MARCH 2010 AMENDMENT OF REGULATION 6.15 l. It was noted that in order to change the quorum requirements for meetings of the members of the Company, it was proposed that the first sentence of Regulation 6.15 of the Co

March 8, 2010 CORRESP

Deswell Industries, Inc. 17B, Edificio Comercial Rodrigues 599 Avenida da Praia Grande Macao, Special Administrative Region, PRC Tel: (853) 322096 Fax: (853) 323265 March 8, 2010

CORRESP 1 filename1.htm Deswell Industries, Inc. 17B, Edificio Comercial Rodrigues 599 Avenida da Praia Grande Macao, Special Administrative Region, PRC Tel: (853) 322096 Fax: (853) 323265 March 8, 2010 Via EDGAR Terence O’Brien Accounting Branch Chief Division of Corporation Finance Securities and Exchange Commission Mail Stop 4631 100 F Street, NE Washington, DC 20549-7010 Re: Deswell Industries

March 2, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For March 2, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edifici

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For March 2, 2010 DESWELL INDUSTRIES, INC. (Registrant’s name in English) 17B Edificio Comercial Rodrigues 599 Avenida Da Praia Grande, Macao, China (Address of principal executive offices) Deswell Announces Third Quarter Results FOR I

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