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Hindustan Zinc Ltd has awarded engineering and construction contracts to CIMIC Group companies Sedgman and Leighton Asia for setting up India’s first zinc tailings recycling facility at its Rampura Agucha Mines (RAM) in Rajasthan.
The facility will deploy advanced processing technologies to recover residual metals such as zinc and silver from previously processed tailings, converting legacy waste into usable resources. The project is aligned with India’s focus on resource efficiency, circular economy practices and strengthening the domestic critical minerals ecosystem.
Under the scope of work, Sedgman will undertake detailed engineering and offshore equipment procurement, while Leighton Asia will manage onshore procurement and construction. The project brings together global minerals processing expertise with local infrastructure execution capabilities.
“By establishing India’s first zinc tailings recycling facility at global scale, Hindustan Zinc is creating a blueprint for how legacy resources can be re-engineered into future supply, strengthening the nation’s critical minerals security. Our collaboration with Sedgman’s global minerals processing expertise and Leighton Asia’s on-ground infrastructure execution brings together the best of technology and delivery to set new benchmarks for responsible mining.” said Arun Misra, CEO – Hindustan Zinc Ltd
According to the regulatory filing, the tailings recycling project forms part of Hindustan Zinc’s broader plan to double production capacity. Earlier this year, the company approved nearly ₹12,000 crore of first-phase investments, including expanding refined metal capacity by 250 kilotonnes per annum and upgrading mines and milling infrastructure across multiple locations, aligned with rising zinc demand driven by infrastructure and steel sector investments.
The development follows the Board approval in August for an investment of up to ₹3,823 crore to build a 10 million tonnes per annum (Mtpa) zinc tailings recycling plant at Rampura Agucha, targeted for completion within 28 months from the zero date.
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