Intimation regarding communication sent on 27.08.2026 to the shareholders of Hindustan Copper Ltd regarding weblink of Annual Report for FY 2025-26 is submitted.

No. SCY/CA/59/2026 27.08.2026 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: Letter to Shareholder for weblink of Annual Report for FY 2025-26 Sir / Madam, We are enclosing herewith a copy of the letter containing web-link and exact path where complete details of the Annual Report of Hindustan Copper Ltd. for the FY 2025-26 is available. The above mentioned letter is being sent to those shareholder(s) whose email address(es) are not registered with the Registrar and Share Transfer Agent(s) of the Company (RTA) / Depository Participant(s) in terms of provisions of Regulation 36 (1) (b) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. The above is submitted pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulation, 2015 for information and record of the Exchange 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 Hindustan Copper Limited (CIN: L27201WB1967GOI028825) Regd. Office: ‘Tamra Bhavan’, 1, Ashutosh Chowdhury Avenue, Kolkata – 700 019 Phone: (033) 2283-2226, 2202-1000, E-mail: investors_cs@hindustancopper.com Website: www.hindustancopper.com Dear Shareholder, Sub: Notice of 59th Annual General Meeting of the shareholders of Hindustan Copper Limited and Annual Report for FY 2025-26 We are pleased to inform you that 59th Annual General Meeting (‘AGM’) of Hindustan Copper Limited (‘the Company’) is scheduled to be held on Wednesday, 23rd September, 2026 at 10:30 AM (IST) through Video Conference ('VC') / Other Audio-Visual Means ('OAVM') facility to transact the businesses as set out in the Notice of AGM. This is in compliance with the provisions of the Companies Act, 2013 (‘Act’) and Rules issued thereunder read with Circular dated 22nd September, 2025 issued by the Ministry of Corporate Affairs and SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (‘SEBI Listing Regulations’) read with Circular No. SEBI/HO/CFD/CFD-PoD-2/P/CIR/2024/133 dated 3rd October, 2024 read with other relevant circulars issued in this regard by the Ministry of Corporate Affairs and SEBI. In compliance with the above provisions, electronic copies of the Notice of the AGM along with Annual Report for FY 2025-26 is being sent to all the Shareholder(s) whose e-mail addresses are registered with the Company/RTA/Depository Participant(s). Please be informed that on scrutiny of the shareholder database, we found that your e-mail address is not registered against your demat account/Folio number. On account of this, we are unable to send the report electronically to you. Hence, in accordance with Regulation 36(1)(b) of the SEBI Listing Regulations, this letter is sent by the Company to inform you that the Annual Report 2025-26 can be accessed on the Company’s website at the link https://www.hindustancopper.com/Page/AnnualReport and the path https://www.hindustancopper.com >> Investors >> Disclosure under Regulation 46 of the LODR >> Annual Report. The Annual Report of the Company is also available on the websites of National Securities Depository Limited (‘NSDL’) at www.evoting.nsdl.com and the website of Stock Exchanges i.e., BSE Limited (‘BSE’) and National Stock Exchange of India Limited (‘NSE’) at www.bseindia.com and www.nseindia.com respectively. In case you wish to obtain a physical copy of Annual Report 2025-26, you may write to us at investors_cs@hindustancopper.com mentioning your Folio No./DP ID and Client ID. Key details for the AGM are as under: Sr. No. Particulars Details 1. Record date for Final Dividend 16th September, 2026 2. Cut-off date for Shareholders who are 16th September, 2026 eligible for e-Voting 3. e-Voting start date and time 20th September, 2026 (09:00 AM) 4. e-Voting end date and time 22nd September, 2026 (05:00 PM) For more details, kindly refer the Notice of the AGM. If you wish to update or change your e-mail address or communication address or bank details or nomination details, please approach your respective Depository Participant in case you hold shares in electronic form or please write to the Registrar & Transfer Agent of the Company in case you hold shares in physical form at the address given below: Name and Address Contact Details Alankit Assignments Ltd Email id: rta@alankit.com Unit: Hindustan Copper Ltd Tel No.: 011 4254 1234 205-208, Anarkali Complex, Website: https://alankitassignments.com Jhandewalan Extension, New Delhi- 110055 Yours faithfully, For Hindustan Copper Ltd Sd/- (Mritunjay Kumar Dev) Company Secretary & Compliance Officer Date: 26.08.2026