1934 Act Registration No. 1-14700

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 6-K

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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 2026

(Commission File Number: 001-14700)

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Taiwan Semiconductor Manufacturing Company Limited

(Translation of Registrant’s Name Into English)

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No. 8, Li-Hsin Road 6

Hsinchu Science Park

Hsinchu 300-096, Taiwan

Republic of China

(Address of Principal Executive Offices)

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Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F x Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in papers as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in papers as permitted by Regulation S-T Rule 101(b)(7): o

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Taiwan Semiconductor Manufacturing Company Limited

Date: March 17, 2026

/s/ Wendell Huang

Wendell Huang

Senior Vice President and Chief Financial Officer

Taiwan Semiconductor Manufacturing Company Limited

Submission Period for 2026 Annual Shareholders’ Meeting

Pursuant to the Depository Agreement for the Taiwan Semiconductor Manufacturing Company Limited (“the Company”) (NYSE:TSM) American Depositary Shares (ADSs), the Company hereby announce to ADSs holders that the submission period for the submission of proposed resolutions for the Annual Shareholders’ Meeting will begin on March 31, 2026 and end on April 7, 2026 (“Submission Period”). All submissions must be submitted within this period. For all enquiries, please contact Citibank Shareholder Services at 1-877-CITIADR (1-877-248-4237).

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD 6-K