Certificate under Reg. 74 (5) of SEBI (DP) Regulations, 2018 for quarter ended 30th September 2026

07th October 2026 BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai 400 001 Scrip Code: 533167 Dear Sir/Madam, Sub: Certificate under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended 30th September 2026. We enclose herewith the confirmation Certificate issued in compliance with Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 by M/s. KFin Technologies Limited, the Registrar and Share Transfer Agent of the Company dated 01st October 2026, for the quarter ended 30th September 2026. Kindly take the above document for your record. Thanking you Yours faithfully For COROMANDEL ENGINEERING COMPANY LIMITED GV MANIMARAN CHAIRMAN AND MANAGING DIRECTOR DIN: 09707546 Encl: A/a KFIN/CEC/CDSL/74(5) E/1 Date: 01‐10‐2026 CENTRAL DEPOSITORY SERVICES (INDIA) LIMITED 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 Registrar to an Issue and Share Transfer Agent of the COROMANDEL ENGINEERING COMPANY LTD, 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. Thanking You Yours faithfully, for KFIN TECHNOLOGIES LIMITED C SHOBHA ANAND VICE PRESIDENT CC TO: COROMANDEL ENGINEERING COMPANY LTD BASCON FUTURA, NEW NO. 10/2, OLD NO. 56L VENKATANARAYANA ROAD T. NAGAR CHENNAI 600017 KFIN/CEC/NSDL/74(5) E/1 Date: 01‐10‐2026 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 Registrar to an Issue and Share Transfer Agent of the COROMANDEL ENGINEERING COMPANY LTD, 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. Thanking You Yours faithfully, for KFIN TECHNOLOGIES LIMITED C SHOBHA ANAND VICE PRESIDENT CC TO: COROMANDEL ENGINEERING COMPANY LTD BASCON FUTURA, NEW NO. 10/2, OLD NO. 56L VENKATANARAYANA ROAD T. NAGAR CHENNAI 600017