Intimation regarding resignation of Ms. Stella Isabella - Independent Director w.e.f 03.09.2026.

September 03, 2026 BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai 400 001 Scrip Code: 533167 Dear Sir/Madam, Sub: Intimation under Regulation 30 of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (the ‘Listing Regulations’) - Intimation of Resignation of Ms. Rajendran Stella Isabella (DIN: 06871120) form the post of Independent Director of the company. With reference to the captioned subject and pursuant to Regulation 30 of the SEBI Listing Regulations, read with Part A of Part A of Schedule III to the said Regulations, we hereby inform you that Ms. Rajendran Stella Isabella (DIN: 06871120) has resigned as Independent Directors of the Company due to other professional commitments, with effect from the closure of business hours on 03rd September 2026. Resignation of Ms. Rajendran Stella Isabella (DIN: 06871120) Ms. Rajendran Stella Isabella (DIN: 06871120) has tendered her resignation as the Independent Director of the Company, with effect from the closure of business hours on 03rd September 2026, citing her other professional commitments and pre-occupancy. Consequently, she shall also cease to be a member of the Audit Committee, Stakeholders Relationship Committee and Member cum chairperson of the Nomination and Remuneration Committee of the company. The letter of resignation received from Ms. Rajendran Stella Isabella is enclosed herewith as Annexure-II. The Disclosure of Information Pursuant to Regulation 30 read with Schedule III - Para A(7B) of Part A of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 and SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, for the aforesaid changes is enclosed as Annexure l. Kindly take the above information on record. Yours faithfully, FOR COROMANDEL ENGINEERING COMPANY LIMITED G V MANIMARAN CHAIRMAN & MANAGING DIRECTOR Encl: As above Annexure-l Details under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read along with SEBI Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 S. No Details of event Particulars 1. Name and DIN Ms. Rajendran Stella Isabella (DIN: 06871120) 2. Reason for Change viz., Resignation due to pre-occupancy appointment/resignation, removal, death or otherwise 3. Date of Appointment/ reappointment With effect from closing business hours of 03rd /cessation September 2026 4. Brief Profile (in case of appointment) Not Applicable 5. Disclosure of relationships between Not Applicable directors (in case of appointment of a director) 6. Copy of resignation letter Enclosed as Annexure II 7. Names of listed entities in which the W S Industries (India) Limited, Egmore Chennai resigning director holds directorships, – Independent director indicating the category of directorship and membership of board committees, if any. 8. The independent director shall, along Ms. Rajendran Stella Isabella has confirmed that with the detailed reasons, also provide there are no material reasons for her resignation confirmation that there are no other other than those mentioned in her resignation material reasons other than those letter. provided.