Media Contact

Ms. Dipti Agrawal

Head - Corporate Communication

14th April 2021

Hindustan Zinc’s in-house innovations get global recognitions, receive grants for US Patents

– Two sustainability technologies developed by HZL’s research and development centre – ZnTech grated US Patent

Udaipur, 14 April, 2021: In a constant pursuit of innovating for a sustainable future, Hindustan Zinc has achieved a big milestone, being granted US patents for two of their sustainability technologies. The two patents – US10844551B2 for manufacturing Paver Blocks from process waste; and US10919924B2 for the method of production of Potassium Antimony Tartrate (PAT) by utilizing Antimony bearing residues – were developed in-house by HZL’s state-of-the-art research and development centre – ZnTech (formerly known as Central Research and Development Laboratory).

Commitment towards Environment and Sustainability is one of the core principles that drive business operations at Hindustan Zinc. The company proactively works towards ensuring sustainable practices are an integral part of operations. Both these technologies are aimed to create value from waste that can be utilised within HZL’s operations and support local entrepreneurs and communities.

Commenting on this, Mr. Arun Misra, CEO, Hindustan Zinc said, ”Our outlook towards sustainability is not limited to just reducing our environmental footprint, but at the same time creating more value from our supply chain. Coupled with our approach of innovative thinking and best-in-class technologies, this culture propels us to be recognised as an industry benchmark. These US patents exemplify how sustainability, innovation and technology seamlessly come together at Hindustan Zinc to create to create smart and sustainable mines of the future.”

Fostering a culture of high performance and innovative thinking, employees of Hindustan Zinc always strive to create breakthrough solutions. The ZnTech team consisting of – Ms Sheeba Mashruwala, Mr Kiran Rokkam, Mr Ashish Kumar, Dr KD Sharma, Mr Sundar Sombhatla, and Mr Akhilesh Shukla played a pivotal role in developing and patenting these breakthrough solutions.

The method to produce PAT also has a European Patent (EP3192882) to its name. PAT is consumed by Zinc hydro smelters for purification and to produce Zinc Metal. This patented process has been successfully running at HZL since 2016. The technology for manufacturing paver blocks on the other hand, produces greener products that have a lower cost of production than conventional method while also conserving natural resources. This technology has produced 80,000 paver blocks that are laid at different HZL units as a test case. Two paver block machines are also setup in association with Self Help Groups (SHGs) to or support the community.

About Hindustan Zinc Limited

Hindustan Zinc, a Vedanta Group Company, is one of the world’s largest and India’s only integrated producer of Zinc-Lead and Silver. The Company has its Headquarter at Udaipur in the State of Rajasthan where it has its Zinc-Lead mines and smelting complexes. Hindustan Zinc is self-sufficient in power with captive thermal power plants and also has ventured into green energy by setting up wind power plants. The Company is ranked 1st in Asia-Pacific and globally 7th in Dow Jones Sustainability Index in 2020 amongst Mining & Metal companies. Hindustan Zinc is a certified Water Positive Company, a member of the FTSE4Good Index and has scored ‘A’ rating by CDP for climate change.

Being a people-first company, Hindustan Zinc believes in inculcating the values of Trust and Excellence to have a culture of high-performance in its workforce. The company takes pride in having some of the best-in-class people practices and employee centric initiatives, which have certified Hindustan Zinc as – ‘Great Place to Work 2021’, ‘Company with Great Managers 2020’ by People Business and the People First HR Excellence Award.

As a socially responsible corporate, Hindustan Zinc has been relentlessly working to improve the lives of rural and tribal people residing near its business locations. The company is amongst the Top 15 CSR Spenders in India and are currently reaching out to 500,000 people in 184 core villages of Rajasthan and 5 in Uttarakhand. As a market leader, Hindustan Zinc governs about 77% of growing Zinc market in India.