Item 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

Information about the fees for professional services rendered by our independent registered public accounting firm in 2020 and 2019 is incorporated by reference from the discussion under the heading Item 2—Ratification of Selection of Independent Registered Public Accounting Firm—Audit and Non-Audit Fees in our Proxy Statement. Our Audit Committee’s policy on pre-approval of audit and permissible non-audit services of our independent registered public accounting firm is incorporated by reference from the discussion under the heading Item 2—Ratification of Selection of Independent Registered Public Accounting Firm—Policy on Audit Committee Pre-Approval of Audit and Permissible Non-Audit Services of Independent Registered Public Accounting Firm in our Proxy Statement.