Trading Window

Date: September 17, 2026 To, To, BSE Limited National Stock Exchange of India Limited Listing Department Listing Department Corporate Relationship Department Exchange Plaza, C-1, Block G, P. J. Towers, Dalal Street, Bandra Kurla Complex, Bandra (E), Fort, Mumbai - 400 001 Mumbai – 400051 BSE Scrip Code: 544913 NSE Symbol: GLASSWALL Subject: Intimation for Closure of Trading Window as per SEBI (Prohibition of Insider Trading) Regulations, 2015 (“PIT Regulations) Dear Sir/ Madam, This is to inform you that pursuant to the provisions of Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015, as amended from time to time read with the Company’s Code of Conduct for Prevention of Insider Trading, the trading window for dealing in the securities of Glass Wall Systems (India) Limited (‘the Company’) shall remain close for all Designated Persons and their immediate relatives, with effect from September 17, 2026, till 48 hours after declaration of the Unaudited Financial Results of the Company for the quarter ended June 30, 2026. The date of the Board Meeting for declaration of Unaudited Financial Results of the Company for the quarter ending June 30, 2026, will be intimated in due course. We request you to take the same on record. Thanking You, Yours faithfully, For Glass Wall Systems (India) Limited Sagar Lambole Company Secretary and Compliance Officer Membership No. A45005 Glass Wall Systems (India) Limited (Formerly Glass Wall Systems (India) Private Limited) 503-504,5th Floor, A Wing, Marathon Futurex, Mafatlal Mills Compound, N.M. Joshi Marg, Lower Parel (E), Mumbai 400013. | Tel./Fax No: +91 22 6103 3456 E: info@glasswallsystem.com | W: www.glasswallsystems.in AN ISO 9001: 2008 COMPANY| CORPORATE IDENTITY NUMBER: U74999MH2010PLC207187