Thermax Limited has informed the exchanges about order passed by Goods and Services Tax Authority

November 5, 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 under Regulation 30 read with Schedule III of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“Listing Regulations”) Dear Sir/Madam, Pursuant to Regulation 30 of the Listing Regulations, we hereby inform you that the Company has received Assessment Order passed by Joint Commissioner Central GST Pune I. The order was received on November 04, 2026, at 7:06 p.m. IST. The requisite details as required by SEBI Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, regarding the same are enclosed herewith as Annexure “A”. This is for your information and records. Thanking you, Yours faithfully, For THERMAX LIMITED, Sangeet Hunjan Company Secretary and Compliance Officer Membership No.: A23218 Encl: as above Annexure A Sr. Disclosure Requirements Brief Particulars 1. Name of the Authority Joint Commissioner Central GST Pune -I Commissionerate, Pune. 2. Nature and details of the action(s) taken, initiated or Assessment Order passed by Joint Commissioner order(s) passed; Central GST Pune I. 3. Date of receipt of direction or order, including any November 4, 2026 ad-interim or interim orders, or any other communication from the authority 4. Details of the violation(s)/contravention(s) Penalty of Rs. 53.47 lakhs on account of delayed committed or alleged to be committed reporting of Tax Invoices for supply made during FY 2022-23. 5. Impact on financial, operation or other activities of The Company shall file an appeal challenging the listed entity, quantifiable in monetary terms to the said demand, in due course of time. the extent possible 6. Reason for delay NA