Please find attached intimation for closure of Trading Window.

Date: 30.09.2026 BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Streets, Mumbai – 400001 Scrip Code: 524480 Subject: Closure of Trading Window for dealing in Securities of Riddhi Siddhi Gluco Biols Limited (“Company”). Dear Sir/Madam, Pursuant to the provisions of Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015 as amended and in compliance with the terms of Code of Conduct of the Company, we hereby inform you that ‘Trading Window’ for dealing in the securities of the Company will be closed for all Designated Persons and their immediate relatives from 1st October, 2026 and the same will remain closed till expiry of 48 hours after public announcement of Unaudited Financial Results of the Company for the Quarter and Half year ended 30th September, 2026 (both days inclusive). Accordingly, all designated persons and their immediate relatives of the Company have been advised not to trade in the securities of the Company during the above mentioned period of closure of window. You are requested to take a note of the same. Thanking You, For, RIDDHI SIDDHI GLUCO BIOLS LIMITED SHARAD JAIN COMPANY SECRETARY & COMPLIANCE OFFICER Mem. No.: F13058