Certificate under SEBI (Depositories and Participants) Regulations, 2018

October 13, 2026 The Secretary The Manager Listing Department Listing Department BSE Ltd. National Stock Exchange of India Ltd Phiroze Jeejeebhoy Towers, Exchange Plaza, Bandra – Kurla Complex Dalal Street, Bandra (East), Mumbai – 400 051 Mumbai- 400 001 Scrip Code -506690 Stock Symbol – UNICHEMLAB Dear Sir/Madam, Sub: Compliance Certificate under regulation 74[5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026. Please find enclosed herewith the Compliance Certificate dated October 03, 2026, issued by MUFG Intime India Private Limited, Registrar & Share Transfer Agent of Company confirming compliance with Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026. Thanking you, Yours truly, For UNICHEM LABORATORIES LIMITED PRADEEP BHANDARI Head Legal & Company Secretary Encl : As above MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) CIN: U67190MH1999PTC118368 Registered Address: C-101, Embassy 247, L.B.S. Marg, Vikhroli (West), Mumbai - 400083. Tel: +91 22 4918 6000 www.in.mpms.mufg.com Date : 03-10-2026 The Compliance Officer/ Company Secretary UNICHEM LABORATORIES LIMITED KANDIVALI INDUSTRIAL ESTATE KANDIVALI (WEST) MUMBAI MUMBAI PINCODE : 400067 Sub : Confirmation Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Dear Sir/Madam, In reference to the above captioned regulation, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30th September 2026, were confirmed (accepted/rejected) to the depositories by us and that securities comprised in the said certificates have been listed on the stock exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been confirmed/rejected and the security certificates received were mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in the register of members as the registered owner within the prescribed timelines. We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) Ashok Shetty Sr. Vice President-Corporate Registry MUFG Intime India Private Limited A part of MUFG Corporate Markets, a division of MUFG Pension & Market Services