Intimation regarding appointment of Smt. Madhumita Daolagupu as Additional Director - Part Time Non-Official (Independent) Director on the Board of Hindustan Copper Limited is submitted.

No. HCL/SCY/SE/2026 15.08.2026 To, To, BSE Limited National Stock Exchange of India Ltd Phiroze Jeejeebhoy Towers Exchange Plaza, C-1, Block G Dalal Street Bandra-Kurla Complex, Bandra (East) Mumbai 400 001 Mumbai 400 051 BSE Scrip Code: 513599 NSE Symbol: HINDCOPPER Sub: Intimation regarding appointment of Smt. Madhumita Daolagupu as Additional Director - Part Time Non-Official (Independent) Director on the Board of Hindustan Copper Limited Sir / Madam, In continuation to our letter dated 14.08.2026, it is informed that approval of the Board of Directors of Hindustan Copper Limited (HCL) has been accorded by way of resolution through circulation for appointment of Smt. Madhumita Daolagupu as Additional Director - Part Time Non-Official (Independent) Director on the Board of HCL with effect from 14.08.2026 till the date of ensuing Annual General Meeting of the Company. Smt. Daolagupu is not related to any of the Members of the Board of Directors or Key Managerial Personnel of the Company or their relatives. He is also not debarred from holding the office of Director by virtue of any SEBI order or any other such authority. A brief profile of Smt. Daolagupu is enclosed. The above is submitted pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 for information and record please. Thanking you, Yours faithfully, (Mritunjay Kumar Dev) Company Secretary & Compliance Officer Encl: As stated फोन Tel: 2283-2226 (Hunting). वेब Web: www.hindustancopper.com, ईमेल Email: investors_cs@hindustancopper.com Brief Profile of Smt. Madhumita Daolagupu, Part Time Non-Official (Independent) Director, Hindustan Copper Ltd Born on 19.10.1963, Smt. Madhumita Daolagupu is B.Sc. and M.Sc. with 37 years of experience in teaching, administration and managing financial affairs. Smt. Daolagupu has served as an Assistant Professor, Associate Professor and Principal of Haflong Government College, Assam. Also, she served as the President of the Governing Body in Government Model College, Assam. During her tenure she also managed the financial affairs of the college, arranged maintenance and upkeep of college buildings, conducted selection for teaching & non-teaching posts. *****