Intimation of Closure of Trading window.

Date: September 26, 2026 BSE Limited Phiroze Jeejeebhoy Towers, Dalal Street, Fort, Mumbai - 400001 Scrip Code: 537326 Dear Sir/Ma’am, Subject: Closure of Trading Window. This is to inform you that in pursuance to SEBI (Prohibition of Insider Trading) Regulations, 2015 and Company’s Code of Conduct-Prohibition of Insider Trading, the trading window for dealing in the securities of the Company shall remain closed for all Designated Persons and their immediate relatives, from October 01, 2026 till 48 hours after the declaration and submission of Unaudited Financial Results for the Quarter and Half Year ended September 30, 2026 to Stock Exchange. Accordingly, Designated Persons of the Company (including their immediate relatives) are advised not to deal in the securities of the Company during the aforesaid period of Closure of Trading Window. The date of Board Meeting to approve the Unaudited Financial Results of the Company for the Quarter and Half Year ended September 30, 2026 will be informed in due course. This intimation will also be made available on the website of the Company and can be accessed at https://www.chemtechvalves.com/investors/. Kindly take the above information on your record. Thanking You, Yours Sincerely, FOR CHEMTECH INDUSTRIAL VALVES LIMITED AAROHI PAREEK COMPANY SECRETARY AND COMPLIANCE OFFICER