Intimation regarding Corporate Office address and maintenance of the Books of Account and relevant books and papers of the Company at the Corporate Office address of the Company.

INDO BORAX & CHEMICALS LTD. Regd. Office : 506, 5th Floor. Tulsiani Chambers, Free Press Journal Marg, Nariman Point, Mumbai - 4-00021, India. Ph.: 022 35218591 • CIN: L24100MH1980PLC023177 Email : info«1 indoborax.com • Website : www.indoborax.com Date: August 31, 2026 To, To, BSE Limited, National Stock Exchange of India Ltd, Corporate Relationship Department, Listing Department, Phiroze Jeejeebhoy Towers, Exchange Plaza, Dalal Street, Fort, Bandra-Kurla Complex, Mumbai- 400 001 Bandra (East), Mumbai- 400 051 Stock Code: 524342 Stock Code: INDOBORAX Dear Sir / Ma' am, Sub: Intimation under Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 ("Listing Regulations"), we wish to inform you that the Board of Directors of the Company, by way of a resolution passed by circulation on Monday, August 31, 2026, has approved the establishment of the Corporate Office of the Company and maintenance of the Books of Account and relevant books and papers of the Company at the said Corporate Office. The Corporate Office of the Company shall be situated at Office No. 201-A, 2°d Floor, Vedanta, 779, Makwana Road, Marol, Andheri (East), Mumbai - 400059, with effect from September 15, 2026. Further, the Books of Account and relevant books and papers of the Company shall be maintained and kept at the aforesaid Corporate Office, in accordance with the applicable provisions of the Companies Act, 2013 and the rules made thereunder. You are requested to kindly take the same on record. For Indo Borax & Chemicals Limited Pravin Chavan Company Secretary & Compliance Officer Membership No.: A16857 Encl: As above