Hindustan Zinc and Silox reinforce their long-term collaboration to drive industrial decarbonisation and greener supply chains
Udaipur, India, 24th December 2025: Hindustan Zinc Limited, the world’s largest integrated zinc producer, and Silox India, a leading specialty chemicals manufacturer, have announced the strengthening of their long-standing partnership through Silox India’s adoption of Hindustan Zinc’s low-carbon zinc brand, EcoZen, across its manufacturing operations. The collaboration marks a significant step in advancing low-carbon practices across India’s industrial value chains and highlights the important role of upstream producers in enabling downstream decarbonisation. By integrating EcoZen, Silox India will reduce the embedded carbon footprint of its zinc-based chemical products while continuing to meet the performance and quality standards expected by its global customers.
EcoZen is Asia’s first low-carbon zinc produced entirely using renewable energy, with a verified carbon footprint of less than one tonne of CO₂ per tonne of zinc—around 75% lower than the global industry average. Beyond its low-emissions profile, EcoZen offers full traceability and third-party verification, enabling customers to transparently account for the environmental impact of their material inputs. In downstream applications such as galvanizing, the use of EcoZen can avoid approximately 400 kilograms of CO₂ emissions per tonne of steel compared with conventional zinc.
Hindustan Zinc, a Vedanta Group company, plays a critical role in India’s metals ecosystem, supplying zinc and associated materials to sectors ranging from infrastructure, automotive and power to chemicals and renewables. As part of its sustainability strategy, the company has prioritised reducing emissions not only within its own operations but also across customer value chains. EcoZen has emerged as a central pillar of this approach, supporting customers in meeting Scope 3 emission reduction targets. Hindustan Zinc is also a member of the International Council on Mining and Metals (ICMM), underscoring its alignment with global best practices in responsible mining, climate action and transparent value chains.
Silox India is one of Hindustan Zinc’s key customers in the chemical applications segment. The company specialises in inorganic chemistry and the manufacture of non-ferrous metal derivatives, supplying application-specific solutions to a broad range of industrial sectors. The incorporation of EcoZen aligns with Silox India’s ESG objectives by reducing the carbon footprint of its zinc-based offerings and strengthening the sustainability credentials of its supply chain.
Speaking on this, Arun Misra, Chief Executive Officer & Whole-time Director, Hindustan Zinc, said, “Decarbonisation at Hindustan Zinc is not limited to our own operations; it extends to how our products are used across industries. EcoZen represents a step change in how zinc can support cleaner manufacturing. By partnering with customers like Silox India, we are enabling the wider adoption of low-carbon solutions at scale.”
Prakash Raman, Managing Director, Silox India, said the collaboration supports the company’s long-term sustainability roadmap. “Integrating EcoZen into our manufacturing processes allows us to lower embedded emissions across our product portfolio while continuing to deliver high-performance solutions to our customers. This partnership demonstrates how upstream innovation can accelerate sustainability outcomes downstream.”
EcoZen combines zinc’s durability and long service life with a significantly lower carbon footprint at the production stage, helping reduce overall environmental impact across the value chain. By delivering consistent performance and quality alongside reduced emissions, EcoZen supports more sustainable manufacturing practices for industrial customers. The product is backed by third-party verified life-cycle assessments, Environmental Product Declarations, and globally recognised ISO and REACH certifications, ensuring transparency, credibility and compliance.
As industries such as automotive, renewable energy and infrastructure increasingly seek low-carbon materials, the partnership between Hindustan Zinc and Silox India highlights how collaboration across the value chain can help drive India’s transition towards a more sustainable industrial economy.
About Hindustan Zinc
Hindustan Zinc Limited (BSE: 500188 and NSE: HINDZINC), a Vedanta Group company, is the world’s largest integrated zinc producer and is amongst the top 5 silver producers globally. The company supplies to more than 40 countries and holds a market share of about 77% of the primary zinc market in India. Hindustan Zinc has been recognized as the world’s most sustainable company in the metals and mining category for the third consecutive year by the S&P Global Corporate Sustainability Assessment 2025, reflecting its operational excellence, innovation, and leading ESG practices. The company also became the first Indian company to join the prestigious International Council on Mining & Metals (ICMM) in 2025. The company also launched EcoZen, Asia’s first low carbon ‘green’ zinc brand. Produced using renewable energy, EcoZen has a carbon footprint of less than 1 tonne of carbon equivalent per tonne of zinc produced, about 75% lower than the global average. Hindustan Zinc is also a certified 3.32 times Water-Positive company and is committed to achieving Net Zero emissions by 2050 or sooner. Transforming the lives of 2.3 million people through its focused social welfare initiatives, Hindustan Zinc is among the Top 10 CSR companies in India. As an energy transition metals company, Hindustan Zinc is pivotal in providing critical metals essential for a sustainable future.
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About Silox group
The Silox company has been founded in 1983 and draws its roots from a rich industrial heritage of almost two centuries. Silox group is a world leader in zinc and sulfur chemicals, anticorrosion pigments and recycling of non-ferrous metal-bearing complex residues. The company is a major player in the circular economy, meeting the growing need for advanced materials while offering an alternative to the exploitation of natural resources for critical metals. A producer of green and non-carbon energy, the group pays great attention to reducing its overall impact on the environment. Further information at www.silox.com.
About Silox India
Silox India Private Limited (SIPL) is a JV company between Silox (Belgium) and Transpek group (India). It is one of the largest manufacturers of Sodium formaldehyde Sulfoxylate (Safolite®), Zinc formaldehyde sulfoxylate (Safolin®) and Zinc Powder in the world. Silox India has three manufacturing locations, all certified ISO 9001, ISO 45001 and ISO 14001. The company is a Responsible Care logo holder company. The ample biodiversity that the company has been able to nurture within its manufacturing locations, stands testimony to its efforts
For further information, please contact:
Maitreyee Sankhla
Head Corporate Communications
maitreyee.sankhla@vedanta.co.in