Please find attached the intimation letter under Regulations 30 and 51 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015.

HI: I: HCC/SEC/AGM/MOA/2026 August 18, 2026 BSE Limited National Stock Exchange of India Limited The Corporate Relationship Dept, Exchange Plaza, Phiroze Jeejeebhoy Towers, Sandra Kurla Complex, Dalal Street, Sandra (East), Mumbai-400 001 Mumbai-400 051 Scrip Codes: 500185, 974246, 974247, Symbol- HCC 97 4249 & 97 4250 Dear Sir I Madam, Sub : Intimation under Regulations 30 and 51 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 ("SEBI Listing Regulations") Pursuant to the provisions of Regulations 30 and 51 read with Schedule Ill of the SESI Listing Regulations, we wish to inform you that the Members of the Company, at their 10 01 h Annual General Meeting held on Tuesday, August 18, 2026, have approved increase in Authorised Share Capital of the Company from ~300,00,00,000 (Rupees Three Hundred Crore Only) divided into 290,00,00,000 (Two Hundred Ninety Crore) Equity Shares of ~1/- each (Rupee One Only) and 1,00,00,000 (One Crore) Redeemable Preference Shares of ~1 0/- each (Rupees Ten Only) to ~400,00,00,000 (Rupees Four Hundred Crore Only) divided into 390,00,00,000 (Three Hundred Ninety Crore) Equity Shares of ~1/- each (Rupee One Only) and 1,00,00,000 (One Crore) Redeemable Preference Shares of ~10/- each (Rupees Ten Only) and consequential alteration to the Clause V of the Memorandum of Association of the Company. The disclosure pursuant to SESI Master Circular No. H0/49/14/14(7)2025-CFD POD2/I/3762/2026 dated January 30, 2026 is enclosed as "Annexure A". We request you to kindly take the above on record. Yours sincerely, For Hindustan Construction Company Ltd. Nitesh Kumar J ha Company Secretary Encl.: As above. Hindustan Construction Co Ltd Hincon House, LBS Marg, Vikhroh (West), Mumbai 400 083, India Tel: +91 22 2575 1000 Fax: +91 22 2577 7568 www .hccmdia.com CIN: L45200MH1926PLC001228 "Annexure A" The disclosure pursuant to SEBI Master Circular No. H0/49/14/14(7)2025-CFD POD2/I/3762/2026 dated January 30, 2026 Sr. Particulars Details 1. Amendments to Memorandum of The Memorandum of Association of the Company has Association, in brief been altered by substituting the existing Clause V thereof with the following Clause V: V: The Authorised Share Capital of the Company is ~400,00,00,000 (Rupees Four Hundred Crore Only) divided into 390,00,00,000 (Three Hundred Ninety Crore) Equity Shares of ~1/- each (Rupee One Only) and 1,00,00,000 (One Crore) Redeemable Preference Shares of ~1 0/- each (Rupees Ten Only), with the power of the Board of Directors of the Company to increase and reduce the Share Capital of the Company within the overall limit and to divide or subdivide the shares into several classes and to attach thereto respectively such rights, privileges or conditions as may be permitted by the applicable laws in force and in accordance with the Articles of Association of the Company for the time being in force. 2. Amendments to Articles of Not Applicable Association, in brief www .hccindia.com