Thermax Limited has submitted to the exchanges certificate under Reg 74(5) of the SEBI (DP) Regulations.

October 12, 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: Certificate under Regulation 74 (5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026 Dear Sir/Madam, Based on the confirmation received from KFin Technologies Limited, Registrar and Transfer Agent of the Company, we hereby certify that the securities received for dematerialization have been mutilated and cancelled after due verification and the name of the depository has been substituted in our records as the registered owner within 15 days of receipt of certificate of security and the details are furnished to the stock exchange. Further, we, certify that the securities which were dematerialized are listed on the Stock Exchange(s) where the earlier issued securities are listed. We request you to take this information on Record. Thanking you, Yours faithfully, For THERMAX LIMITED, Sangeet Hunjan Company Secretary & Compliance Officer Membership No: A23218 Encl: As above KFIN/TSE/CDSL/74(5) Date: 12/10/2026 CENTRAL DEPOSITORY SERVICES (INDIA) LTD REGD OFF: MARATHON FUTUREX, A WING, 25TH FLOOR NM JOSHI MARG, LOWER PAREL (EAST) MUMBAI - 400 023 Dear Sir(s), Sub: Certificate under Regulation 74(5) for the quarter ended September 30, 2026 We as Registrars, Share Transfer and Depository Services agents of the THERMAX LIMITED, certify that the details of securities dematerialized/rematerialized during the aforesaid period, as required under Regulation 74(5) of SEBI (Depositories and participants) Regulations 2018 have been furnished to all the Stock Exchanges where the shares of the company are listed. • The Securities comprised in the Certificate(s) Dematerialization are listed on the Stock Exchange or Exchanges where the earlier issued securities are listed • Mutilated and cancelled the certificate of security forwarded by the participants • Substituted the name of the depository as the registered owner in our records Thanking you, Yours faithfully, For KFIN TECHNOLOGIES LIMITED Dnyanesh Gharote Vice President CC TO: THE COMPANY SECRETARY THERMAX LIMITED THERMAX HOUSE 4 MUMBAI-PUNE ROAD SHIVAJI NAGAR PUNE 411005 KFIN/TSE/NSDL/74(5) Date: 12/10/2026 NATIONAL SECURITIES DEPOSITORY LIMITED TRADE WORLD 4TH FLOOR KAMALA MILLS COMPOUND SENAPATI BAPAT MARG LOWER PAREL MUMBAI - 400 013 Dear Sir(s), Sub: Certificate under Regulation 74(5) for the quarter ended September 30, 2026 We as Registrars, Share Transfer and Depository Services agents of the THERMAX LIMITED, certify that the details of securities dematerialized/rematerialized during the aforesaid period, as required under Regulation 74(5) of SEBI (Depositories and participants) Regulations 2018 have been furnished to all the Stock Exchanges where the shares of the company are listed. • The Securities comprised in the Certificate(s) Dematerialization are listed on the Stock Exchange or Exchanges where the earlier issued securities are listed • Mutilated and cancelled the certificate of security forwarded by the participants • Substituted the name of the depository as the registered owner in our records Thanking you, Yours faithfully, For KFIN TECHNOLOGIES LIMITED Dnyanesh Gharote Vice President CC TO: THE COMPANY SECRETARY THERMAX LIMITED THERMAX HOUSE 4 MUMBAI-PUNE ROAD SHIVAJI NAGAR PUNE 411005