Certificate under SEBI (Depositories and Participants) Regulations, 2018

Pfizer Limited The Capital, 1802/1901, Plot No. C - 70, G Block, Bandra Kurla Complex, Bandra (East), Mumbai 400 051. Tel : +91 22 6693 2000 Fax : +91 22 2654 0274 July 10, 2026 The Corporate Relationship Dept. The Manager, Listing Dept. BSE Limited The National Stock Exchange of India Ltd. 1st Floor, P.J.Towers Exchange Plaza, 5th Floor, Plot No. C/1, Dalal Street, Fort G Block Bandra-Kurla Complex, Bandra (E) Mumbai – 400 001 Mumbai – 400 051 Scrip Code: 500680 Scrip Symbol: PFIZER Dear Sir / Madam, Sub: Certificate under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended June 30, 2026. We furnish herewith certificate dated July 10, 2026, issued by KFin Technologies Limited, Registrar & Share Transfer Agent of the Company, confirming compliance with Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, for the quarter ended June 30, 2026. Request you to please take the above on record. Thanking you, Yours truly, For Pfizer Limited Prajeet Nair Director – Corporate Services & Company Secretary Encl.: A/a CIN: L24231MH1950PLC008311 Email ID: contactus.india@pfizer.com Website: www.pfizerltd.co.in