Mumbai, July 17, 2025 – Sterlite Technologies Ltd (STL), a global leader in optical and digital solutions, has reached a major milestone in green manufacturing by collaborating with Hygenco Green Energies Pvt. Ltd. to commission Maharashtra’s first green hydrogen and green oxygen production facility. This plant, situated in Chhatrapati Sambhaji Nagar, will directly supply green hydrogen and oxygen to STL’s glass preform manufacturing unit, a critical stage in optical fibre production.

A Leap Toward Sustainability

With this move, STL becomes one of the first optical fibre manufacturers globally to fully integrate 100% green hydrogen into its production process. The company has committed to achieving Net Zero emissions by 2030, and this plant is expected to reduce STL’s carbon footprint by nearly 30% annually.

The collaboration follows a build-own-operate model, where Hygenco will manage and run the plant for the next 20 years, ensuring a stable and cost-effective supply of green hydrogen and oxygen to STL’s facilities.

Rahul Puri, CEO – Optical Networking Business at STL, remarked, “By leveraging 100% green hydrogen for its glass preform manufacturing, STL is setting a new global benchmark for decarbonisation in the optical fibre industry. Our collaboration with Hygenco is a bold step towards sustainability and operational excellence.”

How It Works: Green Hydrogen in Fibre Production

At STL’s Industry 4.0-enabled Gaurav Plant in Chhatrapati Sambhaji Nagar, the process of manufacturing high-quality optical fibre begins with the creation of glass preforms. These preforms are produced by converting silica particles into glass, a high-temperature operation that traditionally relies on fossil fuels. By replacing these fuels with green hydrogen and oxygen, STL can significantly cut down on greenhouse gas emissions.

Hydrogen and oxygen are used in blast furnaces during this process. The introduction of green hydrogen means that these gases are produced from renewable energy sources, thereby eliminating the carbon emissions normally associated with their generation.

In addition, the plant will be equipped with advanced autonomous energy management systems, real-time monitoring, and automated control technologies. These innovations will enhance safety, efficiency, and sustainability in operations.

Strategic Impact for STL and India

The move aligns with India’s growing focus on green hydrogen as a future energy source. Hygenco, STL’s partner, is already a significant player in the space and plans to invest $2.5 billion over the next three years. It aims to build 10 GW of green hydrogen and ammonia assets by 2030, contributing directly to India’s National Green Hydrogen Mission.

According to Amit Bansal, CEO of Hygenco, “Green Hydrogen is a game-changer in India's sustainability journey. Our long-term engagement with STL marks a significant step toward decarbonising industrial processes in India.”

The strategic partnership is also expected to set a global precedent for the optical fibre manufacturing industry, positioning India as a leader in green tech deployment in high-tech manufacturing sectors.

About the Gaurav Plant and Its Capabilities

STL’s Gaurav plant is among the most technologically advanced facilities in India, using Industry 4.0 systems and semiconductor-grade cleanroom standards to produce high-purity glass preforms. These are then drawn into fibres used for telecom networks, FTTx, data centres, and enterprise applications.

With the integration of green hydrogen, the plant becomes not only one of the most advanced but also one of the most sustainable in the world.

A New Benchmark in Green Manufacturing

The global optical fibre industry is expected to grow significantly, driven by demand for 5G networks, data centres, and digital infrastructure. With sustainability becoming a core corporate priority, STL’s shift to green hydrogen may attract environment-conscious global customers and investors.

This development strengthens STL’s competitive positioning and could lead to cost savings, long-term supply security, and environmental compliance advantages in international markets.

About STL

Sterlite Technologies Ltd. is a global provider of optical and digital solutions. The company supports large-scale projects in areas like 5G, Rural Broadband (BharatNet), FTTx, data centres, and enterprise networking. It operates across multiple geographies and has a reputation for technological innovation and sustainable practices.

About Hygenco Green Energies Pvt. Ltd.

Hygenco develops scalable and commercially viable green hydrogen and green ammonia assets. With plans to invest over US$2.5 billion in the next three years, Hygenco aims to lead India’s transition to clean energy with 10 GW of green hydrogen capacity by 2030.

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