Please find attached a copy of Press Release "HCC appoints Vivek Singhal as Chief Executive Officer"

HI: I: HCC/SEC/PR/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, Bandra (East), Mumbai-400 001. Mumbai-400 051. Scrip Code- 500185 Scrip Code - HCC Dear Sir I Madam, Sub : HCC appoints Vivek Singhal as Chief Executive Officer We are enclosing a copy of the Press Release being issued by the Company today in this regard. We request you to take the same 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 (Westl. Mumbat · 400 083. India Tel ; •91 22 2575 1000 Fax: 91 22 2577 7568 www.hccindia.com CIN L45200MH1926PLCOO 1228 HI: I: Press Release HCC appoints Vivek Singhal as Chief Executive Officer Mumbai: November 5, 2026: Hindustan Construction Company Limited (HCC) today announced the appointment of Vivek Singhal as Chief Executive Officer, effective November 5, 2026. Singhal brings over four decades of experience in infrastructure and EPC, spanning project execution, business leadership, business development and P&L management. His experience includes 16 years in international markets, delivering projects and managing assets worth -~28,500 across five countries. He has worked across airports, metro rail, urban transport, hydropower, bridges and other infrastructure sectors. Mr. Arjun Dhawan, Vice Chairman & Managing Director, HCC said: "Vivek has built and run large infrastructure businesses across India and international markets and has delivered at scale. That depth will strengthen HCC's leadership as we build on our engineering and execution capabilities and enter our next phase of growth." Singhal joins HCC from GMR Airports Ltd., Singapore, where he served as Chief Executive Officer, with responsibility for global strategy, P&L management, business development and airport asset development across international markets. Previously, he held senior leadership positions at Tata Projects Ltd.; GMR Group in the Maldives; Alpine Bau GmbH in Singapore; and Larsen & Toubro. At Tata Projects, he led the Urban Infrastructure business, growing its turnover from inception to over ~3.300 crore, with an order backlog exceeding ~38,000 crore. At Alpine Bau, he led major underground metro projects in Singapore with a combined contract value exceeding US$1 billion. Singhal holds a Bachelor's Degree in Civil Engineering from Motilal Nehru National Institute of Technology, Allahabad, and has completed the Advanced Management Programme at ~~liM Bangalore. He is a Fellow of the Institution of Civil Engineers, UK. 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 Honcon House LBS Marg, V1khroh IWesll. Mumba1 - 400 083 lnd1a Tel +91 22 2575 1000 Fax • 91 22 2577 7568 CIN l45200MH1926PLC001228 www .hccindia.com