Thermax Limited has informed the exchanges about closure of Trading Window for the declaration of financial results for the quarter and half year ended September 30, 2026.

September 25, 2026 The Secretary National Stock Exchange of India Limited BSE Limited Exchange Plaza, C-1, Block G, PJ Towers, Dalal Street Bandra Kurla Complex, Mumbai: 400 001 Bandra (E) Company Scrip Code: 500411 Mumbai – 400 051 Company Scrip Code: THERMAX EQ Sub: Intimation of closure of Trading Window Dear Sir/ Madam, Pursuant to the Company's Code of Conduct framed in accordance with the SEBI (Prohibition of Insider Trading) Regulations, 2015 (as amended), we wish to inform you that the trading window for dealing in securities of the Company will remain closed for all Designated Persons and their Immediate Relatives from Thursday, October 1, 2026 and shall be opened 48 hours after the declaration of financial results for the quarter and half year ended September 30, 2026. You are requested to kindly take note of the same. Thanking you, Yours faithfully, For THERMAX LIMITED, Sangeet Hunjan Company Secretary & Compliance Officer Membership No: A23218