Closure of Trading Window from 01-10-2026 for Standalone and Consolidated Unaudited Financial Results for the Quarter and half year ended September 30, 2026.

POLYCHEM LIMITED CIN: L24100MH1955PLC009663 REGD. OFFICE: 7. JAMSHEDJI TATA ROAD. CHURCHGATE RECLAMATION. MUMBAI-400 020 Ph: 022 - 2282 0048, E-mail: polychemltd@kilachand.com , Website: www.polychemltd.com Date: 25.09.2026 Head Listing Compliance Bombay Stock Exchange Ltd. Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai - 400 001 Company Code – 506605 Dear Sir/Ma'am, Sub: Closure of Trading Window This is to inform you that in terms of the provisions of SEBI (Prohibition of Insider Trading) Regulations, 2015 (as amended up to date) read with the Company's Code of Conduct to Regulate, Monitor and Report Trading by Designated Persons, the Trading Window for purchase/sale of the shares of the Company will remain closed from October 01, 2026 for all the Directors, KMPs and Designated persons of the Company and their immediate relatives, for the purpose of declaration of Standalone and Consolidated Unaudited Financial Results for the quarter and half year ended 30th September, 2026. The Trading Window will open after 48 hours of the announcement of Standalone and Consolidated Unaudited Financial Results for the quarter and half year ended 30th September, 2026 to the stock exchange. Accordingly, this has been intimated to all the Directors, KMPs, Designated persons and their immediate relatives through them under the above regulations. You are requested to kindly take this on record. Yours faithfully, For Polychem Limited (Deepali V Chauhan) Company Secretary & Compliance Officer Mem No. A38273