General Updates

Registered Office: “THIRUMALAI HOUSE”, Plot No. 101-102, Road No. 29, Sion (East), Mumbai – 400 022, India PHONE: +91 – 22– 43686200 FAX +91 – 22 – 24011699 E-MAIL: thirumalai@thirumalaichemicals.com Website: www.thirumalaichemicals.com (AN ISO 9001, 14001, 50001/ HACCP & FSSC 22000 CERTIFIED COMPANY) CIN: L24100MH1972PLC016149 TCL/SE039/2026-27 August 29, 2026 The National Stock Exchange of India Limited BSE Limited Listing Department Department of Corporate Services Exchange Plaza, Bandra Kurla Complex Floor 25, Phiroze Jeejeebhoy Towers Bandra (East) Dalal Street Mumbai 400 051 Mumbai 400 001 Scrip code: TIRUMALCHM Scrip code: 500412 Dear Sir/ Ma’am, Sub.: Intimation under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – Resignation of Statutory Auditors of the Material Subsidiary Pursuant to Regulation 30 read with Schedule III of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, and Chapter V of the SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, we hereby inform you that M/s. Walker Chandiok & Co LLP, Chartered Accountants (Firm Registration No. 001076N/N500013), have resigned as the Statutory Auditors of TCL Intermediates Private Limited (a material subsidiary of Thirumalai Chemical Limited), with effect from August 28, 2026. The resignation is pursuant to the re-alignment of the auditors with those of the Holding Company, with a view to aligning the audit process across the Group. It is pertinent to note that M/s. Walker Chandiok & Co LLP, Chartered Accountants (Firm Registration No. 001076N/N500013), completed their tenure as the Statutory Auditors of Thirumalai Chemical Limited (Holding Company) at the 53rd Annual General Meeting held on August 7, 2026, pursuant to the mandatory auditor rotation requirements applicable to the Holding Company. In this regard, the details as required under Regulation 30 read with Part A of Schedule III of the SEBI Listing Regulations read with SEBI Circular No HO/49/14/14(7)2025-CFD- POD2/I/3762/2026 dated 30th January, 2026 is annexed as “Annexure -A” and the resignation letter of M/s. Walker Chandiok & Co LLP along with the details with respect to resignation of Auditor of the material subsidiaries as required under SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated 30th January, 2026 is annexed as “Annexure – B”. Registered Office: “THIRUMALAI HOUSE”, Plot No. 101-102, Road No. 29, Sion (East), Mumbai – 400 022, India PHONE: +91 – 22– 43686200 FAX +91 – 22 – 24011699 E- MAIL: thirumalai@thirumalaichemicals.com Website: www.thirumalaichemicals.com (AN ISO 9001, 14001, 50001/ HACCP & FSSC 22000 CERTIFIED COMPANY) CIN: L24100MH1972PLC016149 Kindly take the above information into your records. Thanking you, Yours faithfully, For Thirumalai Chemicals Limited Aditya Sharma Company Secretary & Compliance officer Encl.: As above Registered Office: “THIRUMALAI HOUSE”, Plot No. 101-102, Road No. 29, Sion (East), Mumbai – 400 022, India PHONE: +91 – 22– 43686200 FAX +91 – 22 – 24011699 E- MAIL: thirumalai@thirumalaichemicals.com Website: www.thirumalaichemicals.com (AN ISO 9001, 14001, 50001/ HACCP & FSSC 22000 CERTIFIED COMPANY) CIN: L24100MH1972PLC016149 ANNEXURE A Details of auditor resignation as required under Regulation 30 read with Part A of Schedule III of the SEBI Listing Regulations read with SEBI Circular No HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated 30th January, 2026 Sr.No. Particulars Details 1. Name of the Company TCL Intermediates Private Limited 2. Reason for change viz. Resignation of M/s. Walker Chandiok & Co LLP as appointment, resignation, removal, Statutory Auditor of TCL Intermediates Private death or otherwise Limited, a material subsidiary of Thirumalai Chemicals Limited (Holding Company). The resignation is pursuant to the re-alignment of the auditors with those of the Holding Company, with a view to aligning the audit process across the Group. 3. Date of appointment/re- 28th August, 2026 appointment/cessation (as applicable) & term of appointment/re-appointment; 4. Brief profile (in case of Not Applicable appointment) 5. Disclosure of relationships between Not Applicable directors (in case of appointment of a director). ANNEXURE - B Walker Chandiok & Co LLP 11th floor, A wing, Prestige Polygon, 471 Anna Salai, Mylapore Division, Teynampet, Chennai -600 035 Tamil Nadu, India T +91 44 4294 0099 F +91 44 4294 0044 The Board of Directors TCL Intermediates Private Limited 556, Vanagaram Road, Kamarajapuram, Ambattur, Chennai –600053, Tamil Nadu, India For the Kind Attention of Mr.Sanjay Sinha, Director Dear Sir, We, Walker Chandiok & Co LLP (‘the firm’ or ‘WCC LLP’), were appointed as Statutory Auditors of TCL Intermediates Private Limited (‘the Company’) at the 1st Annual General Meeting (‘AGM’) held on 16 September 2022, for a period of five years upto the conclusion of the 6th AGM, in accordance with the provisions of the Companies Act, 2013. We refer to our discussions and your letter dated26 August 2026requesting us to tender our resignationfrom thestatutoryaudit of the financial statementsas of andfor the year ended 31 March 2027in order to alignthe statutory auditors of the Company with Thirumalai Chemicals Limited (‘Holding Company’)pursuant to the mandatory auditor rotation requirements applicable to the Holding Company.Our tenure as Statutory Auditors of the Holding Company concluded at its 53rd Annual General Meeting held on 07 August 2026. It has been confirmed to us by electronic communication dated 28 August 2026 that no deliverables are expected from us for the quarter ended 30 September 2026. Accordingly, we hereby resign from the office of statutory auditor of the Company. Chartered Accountants Walker Chandiok & Co LLP is registered with limited liability with identification Offices in Ahmedabad, Bengaluru, Chandigarh, Chennai, Dehradun, Goa, Gurugram, Hyderabad, Kochi, number AAC-2085 and has its registered Kolkata, Mumbai, New Delhi, Noida and Pune office at L-41, Connaught Circus, Outer Circle, New Delhi, 110001, India Information from the auditor in the format as specified in Annexure A to the Securities and Exchange Board of India'sMasterCircular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026dated 30 January 2026(the 'Circular') is annexed herewith. We take this opportunity to reiterate our appreciation for the co-operation extended to us by your organization. Should you require any assistance in the future, please feel free to contact us. Yours faithfully, For Walker Chandiok & Co LLP Chartered Accountants Firm’s Registration No: 001076N/N500013 Digitally signed by VIJAY VIKRAM VIJAY VIKRAM SINGH SINGH Date: 2026.08.28 19:32:48 +05'30' Vijay Vikram Singh Partner Membership No.: 059139 Bengaluru 28August 2026 Annexure A Disclosure of information from the statutory auditor upon resignation Particulars Details 1. Name of the listed entity/ material subsidiary TCL Intermediates Private Limited 2. Details of the statutory auditor: a. Name Walker Chandiok & Co LLP 11th floor, A wing, Prestige Polygon, 471 Anna Salai, b. Address Mylapore Division, Teynampet, Chennai -600 035 Tamil Nadu, India c. Phone Number T +91 44 4294 0099 d. Email Vijay.Singh@WalkerChandiok.IN Details of association with the listed entity / material subsidiary: Date on which the statutory auditor was a. 16September 2022 appointed Date on which the term of the statutory auditor Till the conclusion of 6thannual general meeting to was scheduled to expire be held in the year 2027 Prior to resignation, the latest audit report / We have issued audit report dated 28May 2026, c. limited review report submitted by the auditor and on the financial statements for the financial year date of its submission ended 31 March 2026 The Company's management intends to align the statutory auditor of the Company with the auditors of Thirumalai Chemicals Ltd. (‘the [Showing first 8,000 characters — download PDF for full document]