Intimation for closure of trading window w.e.f. 01.10.2026

C orporate Office & Central Laboratory : R/off. 9/1, Near Tulsiyana Industrial Park Gram Kumedi,Indore – 453555 (MP) INDIA Tel: -0731-3501112 Email: compliance_officer@choksilab.in Website: www.choksilab.in C IN: L85195MP1993PLC007471 To, Date: 26th September,2026 The Corporate Relationship Department BSE Limited Phiroze Jeejeebhoy Tower Dalal Street, Fort Mumbai-Maharashtra 400001 Ref: Scrip Code: 526546, ISIN: INE493D01013 SUB: NOTICE OF CLOSURE OF TRADING WINDOW IN THE SHARES OF THE COMPANY. Dear Sir/Madam, We would like to inform you that pursuant to SEBI (Prohibition of Insider Trading) Regulation, 2015 as amended from time to time and read with BSE circular No. LIST/COMP/01/2019-20 dated and April, 2019, the window for trading in the shares of the Company shall remain closed for all Designated Persons, their immediate relatives and all connected persons (as defined in the Code) w.e.f. 1st October, 2026 till completion of 48 hours after the declaration of the Unaudited Financial Results for the quarter and half year ended 30th September, 2026 to the stock exchange. This is further informed that the Company has also complied with the requirements of Securities and Exchange Board of India (SEBI) Circular No. SEBI/HO/ISD/ISD-SEC- 4/P/CIR/2022/107 dated August 5, 2022, SEBI/HO/ISD/ISD-PoD-2/P/CIR/2023/124 dated July 19, 2023 and SEBI/HO/ISD/ISD-PoD-2/P/CIR/2025/55 dated April 21, 2025, regarding Trading Window Closure period under Clause 4 of Schedule B read with Regulation 9 of SEBI (Prohibition of Insider Trading) Regulations, 2015 (“PIT Regulations”) framework for restricting trading by Designated Persons (“DPs”) by freezing PAN at security level. All the Directors, KMP's, Designated Employees, Connected Persons and their immediate relatives are advised not to deal in the shares of the Company either directly or indirectly during the aforesaid period. The date of meeting of the Board of Directors to approve the Unaudited Financial Results of the Company for the quarter and half year ended on 30th September, 2026 shall be informed in due course. Further, we are submitting the information in the XBRL mode to the exchange also along with these. You are requested to please take on record our above said information for your reference; Thanking You, Yours faithfully, FOR CHOKSI LABORATORIES LIMITED PRAKHAR DUBEY COMPANY SECRETARY & COMPLIANCE OFFICER Encl.: Copy of Circular C orporate Office & Central Laboratory : R/off. 9/1, Near Tulsiyana Industrial Park Gram Kumedi,Indore – 453555 (MP) INDIA Tel: -0731-3501112 Email: compliance_officer@choksilab.in Website: www.choksilab.in C IN: L85195MP1993PLC007471 CIRCULAR Dated: 26.09.2026 All the Directors, KMPs, Designated Employees, connected persons, Fiduciaries and their immediate relatives of Choksi Laboratories Limited. SUBJECT: NOTICE FOR CLOSURE OF TRADING WINDOW Pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015 read with BSE Circular No. LIST/COMP/01/2019-20 dated 2nd April, 2019 and Company’s Internal Code of procedure and Conduct; All the Directors, KMPs, Designated Employees, Fiduciaries and their immediate relatives may deal in the shares of the Company on any working day during the trading hours as prescribed by the stock exchange (this shall be called “Trading window”) except during the closure of Trading Window. The window for trading in the shares of the Company shall remain close from 1st October, 2026 till completion of 48 hours after the declaration of the Unaudited Financial Results for the quarter and half year ended 30th September, 2026 to the Stock Exchange. All the Directors, KMPs, Designated Persons/ Employees, connected persons, Fiduciaries and their immediate relatives are advised not to deal in the shares of the Company either directly or indirectly during this Closure of Trading Window. The date of meeting of the Board of Directors to approve the Unaudited Financial Results of the company for quarter and half year ended on 30th September, 2026, will be informed in due course. FOR CHOKSI LABORATORIES LIMITED PRAKHAR DUBEY COMPANY SECRETARY & COMPLIANCE OFFICER Note: 1. Designated Persons/ Employees includes Board of the Directors and the Employees holding designations in the Company E.g. Directors, KMPs and all employees of Accounts/Finance Department, Secretarial Department and their immediate relatives. 2. All the connected persons, including the Statutory, Internal and Secretarial Auditors, designated employees of the Banks, and Share Transfer Agent, etc. and their immediate relatives. 3. Dealing in the equity shares, means an act of buying, selling or agreeing to buy, sell, or deal in any shares of the Company by any Designated Employees either as principal or agent.