General Updates

cls::lfclt1J..1 a,lciR~R fclf&lzs f6~«tl.-l (m«f ~ 3ll"Jf) ~ ~: 11, '1fll'~~ ~ m, ~, ~ - 400 020 Delivering~ Happiness® Hindustan Petroleum Corporation Limited "'-../'" (A Govt. of India Enterprise) Regd. Office: 17, Jamshedji Tata Road, Churchgate, Mumbai -400 020 Ref.: Co.Secy./RKS/354/2026 September 25, 2026 BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai – 400 001 Scrip Code: 500104 Sub.: Disclosure under Regulation National Stock Exchange of India Limited Exchange Plaza, 5th Floor, 30 of the SEBI (Listing Plot No. C/1, G-Block, Obligations and Disclosure Bandra-Kurla Complex, Bandra East, Requirements) Regulations, Mumbai – 400 051 Scrip Name: HINDPETRO 2015 – ESG Rating Dear Sir / Madam, Further to our letter Ref.: Co.Secy./RKS/327/2026 dated September 10, 2026 and pursuant to Regulation 30 read with Schedule III and other applicable provisions of the of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we wish to inform you that ESG Risk Assessments & Insights Limited have updated the Environmental, Social and Governance (ESG) rating to the Company, based on the clarifications provided by the Company. However, the Company is of the view that the updated rating does not adequately reflect its ongoing sustainability initiatives and comprehensive disclosures made in its Integrated Annual Report and Business Responsibility & Sustainability Report. Please note that the Company has not engaged ESG Risk Assessments & Insights Limited for ESG Rating and that it has independently prepared the report. The link for the rating as published by ESG Risk Assessments & Insights Limited: https://india360.esgrisk.ai/Accounts/Ratinglist This is for your information and records. Thanking you, Very truly yours, Rakesh Kumar Singh Company Secretary 17, =~~ -m:-, ij;art-400 020 I ~,n,sr: 2286 3900 17, Jamshedji Tata Road, Churchgate, Mumbai -400 020 I Phone: 2286 3900 email: corphqo@hpcl.in I website: www.hindustanpetroleum.com I CIN: L23201MH1952GOI008858