United States securities and exchange commission logo August 2, 2021 Brett R. Whitmire Chief Financial Officer DIODES INCORPORATED 4949 Hedgcoxe Road, Suite 200 Plano, Texas 75024 Re: DIODES INCORPORATED Form 10-K for the Year Ended December 31, 2020 Filed February 22, 2021 File No. 002-25577 Dear Mr. Whitmire: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Manufacturing