Please find attached the Unaudited Financial Results for the quarter and half year ended September 30, 2026

HCC/SEC/RESULT /2026 November 5, 2026 BSE Limited National Stock Exchange of India Ltd. The Corporate Relationship Dept, Exchange Plaza, Phiroze Jeejeebhoy Towers, Bandra-Kurla Complex, Dalal Street, Sandra (East), Mumbai-400 001 Mumbai-400 051 Scrip Code: 500185, 974246, 974247 Symbol: HCC 97 4249 & 97 4250 Dear Sir I Madam, Sub : Unaudited Financial Results for the quarter and half year ended September 30, 2026 As per Regulations 33 and 52 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we are enclosing the Unaudited Standalone and Consolidated Financial Results of the Company for the quarter and half year ended September 30, 2026 which were approved and taken on record by the Board of Directors of the Company at its Meeting held today i.e. November 5, 2026 along with Limited Review Reports thereon submitted by the Statutory Auditors. A copy of the press release is also enclosed. The Meeting of the Board of Directors of the Company commenced at 1: 30 p.m. and concluded at 4:15p.m. We request you to kindly take the above on record. Yours sincerely, For Hindustan Construction Company Ltd. Arjun Dhawan Vice Chairman & Managing Director Encl.: As above Hindustan Construction Co Ltd Hincon House, LBS Marg, Vikhroli (West). Mumbat · 400 083, India Tel: +91 22 2575 1000 Fax: +91 22 2577 7568 www hccindia.com CIN : L45200MH1926PLC001228 HI: I: Press Release HCC reports Net Profit of Cr for Q2 FY27 Construction business records turnover of ~896 crore in 02 FY27 Mumbai: November 5, 2026: HCC's standalone E&C business recorded a turnover of ~895.8 crore and a net profit of ~36.8 crore in 02 FY27, compared with ~957.8 crore and ~36.7 crore, respectively, in the corresponding quarter last year. On a consolidated basis, revenue stood at ~896.8 crore, compared with ~960.7 crore in 02 FY26, while consolidated profit was ~22.6 crore against ~47.8 crore in the corresponding quarter of the previous year. Financial highlights-HCC unaudited standalone results - Turnover of ~895.8 crore in 02 FY27 versus ~957.8 crore in 02 FY26 Net Profit of ~36.8 crore in 02 FY27 versus ~36. 7 crore in 02 FY26 EBITDA margins at 12.2% in 02 FY27 compared to 16.1% in 02 FY26 During the quarter, HCC secured a new order worth ~524 crore and emerged as the lowest bidder for projects valued at ~2.01 0 crore (HCC share: ~1 ,557 crore). In addition, bids submitted aggregating approximately ~34,805 crore remain under evaluation. Execution across HCC's project portfolio progressed well during the quarter. In the transportation sector, Factory Acceptance Tests for the first Tunnel Boring Machine (TBM) were completed for both Indore and Patna Metro projects, with two TBMs successfully lowered at Indore. At the Agardanda Creek Bridge, work progressed on the foundations and construction of bridge segments. In the power segment, excavation and steel liner fabrication progressed at the Bhivpuri Pumped Storage Project. Furthermore, dam and intake concreting at the Vishnugad Pipalkoti Hydroelectric Project reached 79% completion. Excavation also progressed at Tapovan Vishnugad, while mobilisation began for the Wangchhu Hydroelectric Project in Bhutan. Water infrastructure projects achieved key milestones, with the Parwan Dam reservoir undergoing initial filling and three dredgers commissioned at Salal Dam following mobilisation and testing. As part of its deleveraging strategy, HCC prepaid ~1 00 crore of debt in 02 FY27 and has begun executing a further pre-payment of ~1 08 crore by December 2026. About HCC: HCC is a business group developing and building responsible infrastructure through next practices. With an engineering heritage of 100 years, HCC has executed a majority of India's landmark infrastructure projects, having constructed 26% of India's Hydro Power generation and 60% of India's Nuclear Power generation capacities, over 4,036 lane km of Expressways and Highways, more than 402 km of complex Tunnelling and 403 Bridges. Today, HCC serves the infrastructure sectors of Transportation, Power and Water. Hindustan Construction Co Ltd Hincon House, LBS Marg, Vikhroli (West). Mumbai · 400 083, India Tel : ~91 22 2575 1000 Fax: +91 22 2577 7568 www.hccindia.com CIN L45200MH1926PLC001228 2nd Floor, Kapur House. ParanJape B Scheme Road No.1, Vile Parle (E), MUKUND Mumbai 400057 M. CHITALE T: 91 22 4663 3500 &CO. www. mmch itale .com CHARTERED ACCOUNTANTS Independent Auditor's Review Report on Standalone Unaudited Financial Results of the Company pursuant to the Regulation 33 and Regulation 52 read with Regulation 63(2) of the SEBI (listing Obligations and Disclosure Requirements) Regulations, 2015 (as amended) TO THE BOARD OF DIRECTORS OF Hindustan Construction Company Limited 1. We have reviewed the accompanying Statement of Standalone Unaudited Financial Results of Hindustan Construction Company Limited (hereinafter referred to as 'the Company') which includes the interim financial information of ten joint operations consolidated on proportionate basis as listed in paragraph 5 below, for the quarter and half year ended September 30, 2026 ('the Statement') , attached herewith, being submitted by the Company pursuant to the requirement of Regulation 33 and Regulation 52 read with Regulation 63(2) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended ('Listing Regulations'). Attention is drawn to the fact in Note 4 to the Statement regarding 'total balance value of work on hand; as at September 30, 2026, as included in the Statement has been approved by the Company's Board of Directors, but which is not required to be subject to audit or review. 2. This Statement, which is the responsibility of the Company's Management and approved by the Company's Board of Directors, has been prepared in accordance with the recognition and measurement principles laid down in the Indian Accounting Standard 34 "Interim Financial Reporting" ("lnd AS 34"), prescribed under Section 133 of the Companies Act, 2013 read with relevant rules issued thereunder and other accounting principles generally accepted in India and in compliance with Regulation 33 and Regulation 52 read with Regulation 63(2) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 as amended. Our responsibility is to express a conclusion on the Statement based on our review. 3. We conducted our review of the Statement in accordance with the Standard on Review Engagements (SRE) 2410 'Review of Interim Financial Information Performed by the Independent Auditor of the Entity', issued by the Institute of Chartered Accountants of India (I CAl). A review of interim financial information consists of making inquiries, primarily of the Company's personnel responsible for financial and accounting matters and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with Standards on Auditing specified under section 143(10) of the Companies Act, 2013 and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion. 4. We have also performed procedures in accordance with the circular issued by the SEBI under Regulation 33(8) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended, to the extent applicable. 5. The St at ement 1. ncI u d es th e resu ts of t he f o II ow1ng J o1.n t 0 'perat1ons. Sr. No. Name of the Entity 1 HCC TPL Indore Metro Joint Venture 2 TPL-HCC Bhivpuri PSP Joint Venture 3 HCC- HOC Joint Venture 4 Kumagai -Skanska -HCC - ltochu Group 5 HCC- L& T Purulia Joint Venture MUKUND M. CHITALE &CO. CHARTERED ACCOUNTANTS 6 Alpine - Samsung - HCC Joint Venture 7 Nathpa Jhakari Joint Venture 8 Alpine - HCC Joint Venture 9 HCC- Samsung Joint Venture CC 34 10 HCC- VCCL Joint Venture 6. As stated in: a. Note 6 of the accompanying [Showing first 8,000 characters — download PDF for full document]