General Updates

No. GMDC/CS/ BSE/NSE/034/2026-27 Dt. 18/09/2026 To, To, National Stock Exchange of India, Bombay Stock Exchange Ltd. Exchange Plaza, C-1, Block G, 25th Floor, P.J. Towers Bandra Kurla Complex Dalal Street Bandra (East) , Mumbai – 400 051 Fort, Mumbai-400 001 Code : GMDCLTD Code : 532181 Dear Sir/Madam, Subject: Intimation of ESG Rating assigned by Niche Ninety Nine Capability and Certifications (OPC) Private Limited Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby inform that Gujarat Mineral Development Corporation Limited (“the Company”) has received Environmental, Social and Governance (ESG) Rating from Niche Ninety Nine Capability and Certifications (OPC) Private Limited. As per the rating, the Company has been assigned an ESG Rating score of 69, categorized as “Leader”. The detailed ESG rating and related disclosures are available on the website of Niche Ninety Nine Capability and Certifications (OPC) Private Limited and can be accessed at: https://niche99.com/niche99-esg-ratings Please be informed that the Company did not engage Niche Ninety Nine Capability and Certifications (OPC) Private Limited for the evaluation or issuance of its ESG Rating. The rating has been assigned based on publicly available information, and the Company has neither participated in nor provided any specific data for the purpose of such assessment. This information has been received by the Company through an email intimation from BSE Limited on 17th September, 2026, informing that Niche Ninety Nine Capability and Certifications (OPC) Private Limited has submitted ESG Rating disclosure of the Company. This is for your information and record. Thanking you, Yours faithfully, For Gujarat Mineral Development Corporation Limited, Joel Evans Company Secretary. Gujarat Mineral Development Corporation Limited (A Government of Gujarat Enterprise) CIN : L14100GJ1963SGC001206 “Khanij Bhavan”, 132 Ft. Ring Road, Near University Ground, Vastrapur, Ahmedabad-52 Phone : 27913200/3501 Email: cs.co@gmdcltd.com Website: www.gmdcltd.com