Submission of compliance certificate under Regulation 74(5) of SEBI (DP) Regulation for the quarter ended 30.09.2026

Corporate Office & Central Laboratory : Survey No 9/1, Near Tulsiyana Industrial Park, Gram Kumerdi, Indore Mp 453555 Tel: +91 731 4243850 - 88 Email: compliance_officer@choksilab.in Website: www.choksilab.in CIN: L85195MP1993PLC007471 To, Date: 05th October, 2026 General Manager- Corporate Relations Department BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai- 400 001. Script Code: 526546 / INE493D01013 Subject: Certificate for Compliance of Regulation 74(5) of the SEBI (Depositories and Participants) Regulation, 2018 for the quarter ended 30.09.2026. Dear Sir/Madam, In accordance with Regulation 74(5) of the SEBI (Depositories and Participants) Regulation, 2018 for the quarter ended 30th September, 2026, please find enclosed herewith the certificate received from the Registrar and Share Transfer Agent of the company Ankit Consultancy Pvt. Ltd. You are requested to please take on record the above said document for your reference & further needful. Thanking you, Yours truly, FOR CHOKSI LABORATORIES LIMITED PRAKHAR DUBEY COMPANY SECRETARY & COMPLIANCE OFFICER Encl.: a/a ANKIT CONSULTANCY PVT LTD (REGISTRAR AND SHARE TRANSFER AGENT) 60, ELECTRONIC COMPLEX, PARDESHIPURA, INDORE (MP)-452010 CIN No. : U74140MP1985PTC003074 PHONE NO.: 0731-4065799, 4065797 SEBI REGISTRATION No : INR 000000767 Email: investor@ankitonline.com Website:-www.ankitonline.com S.No. 19/Sep 2026 Date -05/10/2026 Choksi Laboratories Limited SURVEY NO. 9/1, NEAR TULSHIYANA INDUSTRIAL PARK,GRAM KUMERDI, INDORE MADHYA PRADESH 452010 Subject : Confirmation Certificate in the matter of Regulation 74 (5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Sir/Madam, We hereby confirm that the securities received from the depository participants for dematerialization during the quarter ended 30 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 dematerialization have been mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in register of members as the registered owner within 15 days. Thanking you, For Ankit Consultancy Pvt.Ltd., CS Saurabh Maheshwari (Compliance officer)