Change in Auditors

llJ..i a,,qn~r.:r (')fffif ~ ~) ~ ~: 11, ~~T'G'ift cTcT 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/325/2026 September 08, 2026 BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai – 400 001 Scrip Code: 500104 National Stock Exchange of India Limited Sub.: Appointment of Auditors Exchange Plaza, 5th Floor, Plot No. C/1, G-Block, Bandra-Kurla Complex, Bandra East, Mumbai – 400 051 Scrip Name: HINDPETRO Dear Sir(s), Further to our letter Ref.: Co.Secy/RKS/343/2025 dated September 10, 2025 and pursuant to the Regulation 30 read with Schedule Ill Part A of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we write to inform you that the Company has received a letter on September 08, 2026 from the Office of the Comptroller and Auditor General of India (C & AG), New Delhi, advising continuance of existing Auditors of the Company under Section 139 of the Companies Act, 2013. Brief Profile of Auditors are attached. This is for your information and records. Thanking you, Very truly yours, Rakesh Kumar Singh Company Secretary Encl: a/a 17, ,,p=r,~~ -m:-, ~- 400 020 I ~'ITT"r: 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 Brief Profile: M/s. S K Patodia & Associates LLP, Mumbai (Statutory Auditor) S K Patodia & Associates LLP, was set-up in 1992. Over the years, it has built a team of committed professionals with specialized skills, diversified into a range of services to meet business needs of clients and expanded PAN India to create and add value to client’s businesses and to serve them better. The Firm has more than 30 years of experience, with specialisation in Statutory Audit, BFSI Focused Services, Internal Audit, Concurrent Audit, Taxation, Corporate advisory, IPO Certifications and Government Consulting. The Firm has been serving key sectors like Banking, Insurance, NBFC/HFC, Chemicals, Pharmaceuticals, Retail distributions, Logistics, E-Governance, I.T., Construction, FMCG etc. M/s. Batliboi & Purohit, Mumbai (Statutory Auditor) Batliboi & Purohit was established in 1907, and has strength of 15 Partners supported by a multifaceted technical team of 155+, comprising CA, MBA, DISA, CIA(USA), Forensic Auditors, Cyber Security & Information System Auditors, Cost & Management Accountants, Company Secretaries etc. The firm is known for providing top-tier audit and assurance services, risk advisory services, taxation services, corporate advisory services etc., and has been serving the industry across key sectors including banking, insurance, mutual funds, Infrastructure, since last 119 years. M/s. D V Ramana Rao & Co, Visakhapatnam (Branch Auditor) D V Ramana Rao & Co, was established in the year 1956 and was converted into its current structure in the year 1977. Firm is specialised in several dimensional professional services, particularly in the states of Telangana & Andhra Pradesh. The Firm is rendering services to businesses in a collaborative manner, with its professionals having wide experience across all sectors, with their well thought-out strategies, sound legal and practical footings. With 5 Partners and a vast member team, the Firm is striving to keep-up deep rooted legacy of creating value addition to all the Stakeholders.