L&T Energy Hydrocarbon Onshore Signs Six-Year EPC Agreement with Petroleum Development Oman

Larsen & Toubro Limited e LARSEN & TOUBRO Secretarial Department L&T House, Ballard Estate Narottam Morarjee Marg Mumbai - 400 001, INDIA Tel: +91 22 6752 5656 Fax: +91 22 6752 5858 www.Larsentoubro.com Email: igrc@larsentoubro.com CIN:L99999MH1946PLC004768 SEC/2026 July 31, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jejeebhoy Towers, Exchange Plaza, 5th Floor Dalal Street, Plot No.C/1, G Block MUMBAI - 400 001 Bandra-Kurla Complex STOCK CODE: 500510 Bandra (E), Mumbai - 400 051 STOCK CODE: LT Dear Sirs, Re : L&T Energy Hydrocarbon Onshore Signs Six-Year EPC Agreement with Petroleum Development Oman We enclose herewith a copy of Press Release that is being issued by the Company today, in connection with the above. We request you to take note of the same. Thanking you, Yours faithfully, for LARSEN & TOUBRO LIMITED SUBRAMANIAN NARAYAN COMPANY SECRETARY & COMPLIANCE OFFICER (ACS 16354) An /50 9001:2015 Certified Department LARSEN & TOUBRO www larsentoubro com L&T House L&T Press Release Ballard Estate, Mumbai 400 001 Tel: 91 22 6752 5656 Issued by Corporate Brand Management & Communications CIN: L99999MH1946PLC004768 L&T Energy Hydrocarbon Onshore Signs Six-Year EPC Agreement with Petroleum Development Oman Mumbai, July 31, 2026: L&T Energy Hydrocarbon Onshore has signed a six-year engineering, procurement and construction Framework Agreement with Oman’s leading oil and gas company, Petroleum Development Oman (PDO), further strengthening the long-standing partnership between the two organisations. Going by the agreement, L&T has been selected as one of four EPC contractors to participate in PDO's upcoming front-end engineering design and EPC projects over the agreement period. L&T will bring in its integrated engineering and execution capability, global expertise and innovation to support PDO's future project requirements. L&T remains committed to supporting In-Country Value (ICV) development in Oman through opportunities for local suppliers, subcontractors and service providers, and the continued development of local capabilities. Commenting on the development, E S Sathyanarayanan, Senior Vice President & Head - L&T Energy Hydrocarbon Onshore, said: "This Framework Agreement marks an important milestone in our long-standing association with Petroleum Development Oman. We look forward to supporting PDO's development plans through safe, innovative and sustainable project delivery, while contributing to Oman's long-term energy and economic growth objectives". L&T Energy Hydrocarbon Onshore is one of India’s largest EPC businesses, delivering integrated Lump Sum Turnkey solutions across the upstream, midstream and downstream hydrocarbon sectors. With a strong track record across global markets, it has successfully delivered refinery expansions, petrochemical complexes, gas processing plants, LNG terminals, fertiliser plants and cross-country pipeline projects. About Larsen & Toubro: Larsen & Toubro (L&T) is a USD 32 billion Indian multinational engaged in EPC Projects, Hi-Tech Manufacturing, Products and Services, operating across diverse domains and multiple geographies. With a strong impetus towards AI & technology, customer–focussed approach and the constant quest for top-class quality have enabled L&T to attain and sustain leadership in its major lines of business for eight decades. About Petroleum Development Oman: Petroleum Development Oman is the leading exploration and production company in the Sultanate of Oman. It delivers the majority of the country's crude oil production and natural gas supply, and plays a central role in supporting Oman's energy security, In-Country Value development and long-term economic growth. Media Contact: Sumeet Chatterjee Head - Corporate Brand Management & Communications sumeet.chatterjee@larsentoubro.com