Press Release

Date: 06th July, 2026 To To National Stock Exchange of India Limited BSE Limited Exchange Plaza, C-1, Block G Phiroze Jeejeebhoy Towers Bandra Kurla Complex Dalal Street Bandra (E), Mumbai – 400 051 Mumbai – 400001 Scrip Symbol: EIEL Scrip Code: 544290 Subject: Press Release Dear Sir/Madam. We are enclosing herewith a press release titled “Enviro Infra Engineers Limited Secures ₹256.92 Crore EPC Orders for Energy-Efficient Sewage Treatment Infrastructure in Varanasi, Uttar Pradesh”. Kindly take the above information on record. Thanking you, For Enviro Infra Engineers Limited (Piyush Jain) Company Secretary & Compliance Officer A57000 Encl: a/a PRESS RELEASE Enviro Infra Engineers Limited Secures ₹256.92 Crore EPC Orders for Energy-Efficient Sewage Treatment Infrastructure in Varanasi, Uttar Pradesh The two new HAM projects under the Namami Gange Programme – 45 MLD and 60 MLD Sewage Treatment Plants – will be developed as energy-efficient, self-sustaining infrastructure, expanding EIEL's HAM portfolio to five projects New Delhi, July 06, 2026: Enviro Infra Engineers Limited (NSE: EIEL, BSE: 544290), a prominent EPC player in water and wastewater treatment across PAN India has secured two prestigious Hybrid Annuity Model (HAM) projects from Uttar Pradesh Jal Nigam (Rural) under the Government of India's flagship Namami Gange Programme. The combined order value stands at ₹256.92 crore. With these wins, the Company has expanded its HAM portfolio to five projects, further strengthening its position as a leading developer and executor of long- term water and wastewater infrastructure under the HAM model. Under these projects, EIEL will develop 45 MLD and 60 MLD Sewage Treatment Plants, associated infrastructure and undertake Operations & Maintenance for a period of 15 years. The projects have been designed as energy-efficient, self-sustaining wastewater treatment facilities that integrate renewable energy solutions to maximise operational sustainability and long-term efficiency. The projects include: 1. Development of a 45 MLD Sewage Treatment Plant and associated infrastructure at Pt. Deen Dayal Upadhyay Nagar (DDU Nagar), along with 15 years of Operation & Maintenance, valued at ₹126.78 crore (excluding GST). 2. Development of a 60 MLD Sewage Treatment Plant and associated infrastructure at Lohta, Varanasi, along with 15 years of Operation & Maintenance, valued at ₹130.14 crore (excluding GST). Both projects will maximise energy self-sufficiency by integrating biogas-based and solar power generation systems. The biogas power plant will convert sludge generated during the sewage treatment process into biogas which in turn shall be fed to gas generators to produce electricity, simultaneously addressing sludge management while generating renewable energy. Solar panels installed across available rooftop and ground spaces will generate clean daytime power. Together, these renewable energy systems will lower operating costs, reduce carbon emissions, improve sustainability and enhance the long-term energy resilience of the sewage treatment plants throughout their operational lifecycle. Mr. Sanjay Jain, Chairman, Enviro Infra Engineers Limited, said: “We are proud to have been entrusted with these significant projects by Uttar Pradesh Jal Nigam (Rural) under Namami Gange Programme. Our focus remains on delivering high-quality, sustainable, and timely solutions that contribute to the nation’s water management and sanitation goals. We are committed to maintaining the highest standards of engineering and execution.” Further demonstrating the Company's strong financial preparedness and disciplined execution capabilities, in-principle approvals for term loans have already been secured for both projects, enabling timely financial closure and seamless project mobilisation. These order wins further strengthen Enviro Infra Engineers Limited's position in the Hybrid Annuity Model (HAM) segment while reinforcing its commitment to delivering sustainable, energy-efficient water and wastewater infrastructure that supports India's long-term water management and environmental objectives. About Enviro Infra Engineers Limited (EIEL): EIEL is one of a leading infrastructure company focused on water and wastewater treatment solutions, with a growing presence in the renewable energy sector. The Company provides end- to-end EPC and O&M services across municipal and industrial segments and is expanding its footprint across solar, wind and energy storage. The Company has an in-house team for designing engineering and construction which makes us self-reliant on all aspects of our business. The teams are supported by third-party consultants and industry experts to ensure compliance and quality standards laid down by the industry and government agencies & departments. We also have our own team for civil construction works thereby reducing dependence on third parties. The scope of our services typically includes design and engineering of the projects, procurement of raw materials, and execution at site with overall project management up to the commissioning of projects. Post commissioning, operations and maintenance of these plants for a certain period of time is generally a part of the award. We have a team of dedicated engineers and personnel focused on operations and maintenance of completed projects. For media details: Zenobia Vaz: Zenobia.vaz@adfactorspr.com