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 October 9, 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 September 30, 2026. We furnish herewith certificate dated October 8, 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 September 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 KFIN/PFZ/SEP/2026 October 8, 2026 Mr. Prajeet Nair Director Corporate Services & Company Secretary M/s. Pfizer Limited The Capital, 1802/1901 Plot C-70 G Block, Bandra Kurla Complex Bandra East, Mumbai- 400051 Dear Sir, Sub: Certificate pursuant to Regulation 74 (5) of SEBI (Depositories and Participants) Regulations, 2018, as amended, for the quarter ended 30th September 2026. With reference to the Regulation 74(5) of SEBI (Depositories and Participants) Regulations 2018, as amended, we hereby confirm that we have complied with the following actions within 15 days of receipt of share certificate(s) from the Depository Participants for the purpose of dematerialization for the quarter ended September 30, 2026.  Confirmed (approved/rejected) dematerialization request.  The shares comprised in the certificate(s) dematerialized are listed on the Stock exchange(s) where the earlier issued shares are listed.  Mutilated and cancelled the share certificate(s)forwarded by the Depository Participants.  Substituted the name of depository as the registered owner in our records. Further, we have been certifying the same to the Depositories and Stock Exchanges in accordance with Regulations. Thanking You Yours faithfully, For Kfin Technologies Limited Vagolu Ratna Babu Assistant Vice President