Overview
NLC India Limited has signed an MoU with CSIR-Central Electrochemical Research Institute (CECRI) to recover critical minerals and Rare Earth Elements from mining waste. The collaboration will develop extraction technologies for overburden and tailings at Neyveli Mines, supporting India’s National Critical Mineral Mission.
A Smart Way to Use Mining Waste
Mining produces a lot of waste material. This waste is called overburden and tailings. Usually, it is dumped and left unused. But this waste may contain valuable minerals. On 10 June 2026, NLC India Limited signed a Memorandum of Understanding (MoU) with CSIR-Central Electrochemical Research Institute (CECRI). The agreement was signed at Neyveli in Tamil Nadu. The two organisations will work together to recover critical minerals and Rare Earth Elements (REEs) from mining waste. This is a smart way to turn waste into wealth. It also helps India become self‑reliant in minerals that are important for defence, electronics, and clean energy.
What is a Memorandum of Understanding (MoU)?
A Memorandum of Understanding is a formal agreement between two organisations. It sets out how they will cooperate in a specific area. It is not a legal contract, but it shows a shared commitment. In this case, the MoU is between a public sector enterprise (NLC India) and a research laboratory under the Council of Scientific and Industrial Research (CSIR-CECRI). They will share knowledge, technology, and resources to recover valuable minerals from waste.
What Are Critical Minerals and Rare Earth Elements?
Critical minerals are minerals that are important for industry and national security. They are used in making batteries, electronics, defence equipment, and renewable energy systems. The supply of these minerals is often risky because only a few countries produce them.
Rare Earth Elements (REEs) are a group of 17 chemically similar elements. They include the 15 lanthanides, plus scandium and yttrium. REEs are used in:
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Powerful magnets (for wind turbines and electric vehicles)
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Smartphones and computers
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Laser systems and defence technology
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Batteries and clean energy devices
India wants to secure its supply of these minerals. The National Critical Mineral Mission is a government programme to do this.
What Are Overburden and Tailings?
During mining, the rock and soil above a mineral deposit must be removed. This material is called overburden . After the ore is taken out, the leftover fine particles are called tailings . Both overburden and tailings are usually considered waste. However, they often contain small amounts of useful minerals, including Rare Earth Elements. Extracting these hidden minerals is called “recovery from secondary resources.” The new MoU will focus on exactly this.
The Partners: NLC India and CSIR-CECRI
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NLC India Limited is a public sector enterprise under the Government of India. It operates large open‑cast lignite (coal) mines in Neyveli, Tamil Nadu. The company also produces power. Its Chairman and Managing Director is Prasanna Kumar Motupalli. He is also a member of a NITI Aayog committee on recovering critical minerals from secondary resources.
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CSIR-CECRI stands for CSIR-Central Electrochemical Research Institute. It is located in Karaikudi, Tamil Nadu. The institute specialises in electrochemistry, corrosion science, and materials technology. It has expertise in extracting metals from ores and waste.
The MoU was signed by I.S. Jasper Rose , Executive Director (Mines & Land) of NLC India, and Dr. K. Ramesha , Director of CSIR-CECRI.
What Will the Collaboration Do?
The agreement has three main areas of work:
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Critical and strategic mineral beneficiation – This means upgrading the concentration of valuable minerals from the waste material.
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Extraction technologies – Developing methods to separate and purify the minerals.
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Studies on overburden and tailings – Analysing the waste material from NLC India’s Neyveli Mines to find out what valuable elements it contains.
The collaboration will also look at similar opportunities in NLC India’s other mining and exploration projects.
Why This MoU Matters for India
India currently imports many critical minerals. This creates supply risks. By recovering these minerals from mining waste, India can reduce its dependence on foreign countries. The MoU supports the National Critical Mineral Mission , which aims to boost domestic production. It also promotes the circular economy – using waste as a resource. This is good for the environment because it reduces the amount of waste dumped on land.
A Human Touch: Turning Waste into Opportunity
For the engineers and scientists at NLC India and CSIR-CECRI, this MoU is a chance to do something new. Instead of seeing overburden as a problem, they see it as an opportunity. One scientist said, “The waste we have been dumping for decades may contain the very elements that power our future.” For the local community, this could mean new jobs in mineral processing and less environmental damage from waste dumps. It is a win‑win for everyone.
Conclusion
The MoU between NLC India and CSIR-CECRI is a forward‑looking step. It will develop technologies to recover critical minerals and Rare Earth Elements from mining waste. This supports India’s goal of self‑reliance in strategic minerals. It also helps the environment by reducing waste. The partnership combines the strength of a public sector company with the expertise of a top research institute. This is how India can turn its waste into wealth.
Exam-Focused Points
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MoU signed on: 10 June 2026.
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Location of signing: Neyveli, Tamil Nadu.
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Parties involved: NLC India Limited (public sector enterprise) and CSIR-Central Electrochemical Research Institute (CECRI).
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CSIR-CECRI location: Karaikudi, Tamil Nadu.
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Signatories: I.S. Jasper Rose (Executive Director, NLC India) and Dr. K. Ramesha (Director, CSIR-CECRI).
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NLC India CMD: Prasanna Kumar Motupalli.
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Main areas of cooperation: Critical mineral beneficiation, extraction technologies, studies on overburden and tailings.
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Overburden: Rock and soil removed to access ore.
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Tailings: Fine waste left after mineral processing.
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Rare Earth Elements (REEs): 17 elements (lanthanides + scandium, yttrium).
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Uses of REEs: Electronics, magnets, batteries, defence.
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Supporting policy: National Critical Mineral Mission of India.
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Secondary resources: Waste streams from mining that can be processed for minerals.
Frequently Asked Questions (FAQ)
Q1: What does the MoU between NLC India and CSIR-CECRI aim to achieve?
A: It aims to recover critical minerals and Rare Earth Elements from overburden and tailings (mining waste) at Neyveli Mines, using advanced extraction technologies.
Q2: What are overburden and tailings?
A: Overburden is the material removed to access an ore body. Tailings are the fine waste left after processing the ore. Both can contain valuable trace elements.
Q3: Why are Rare Earth Elements important?
A: REEs are used in magnets, batteries, electronics, defence equipment, and clean energy technologies. They are critical for modern industry and security.
Q4: How does this agreement support India’s policy goals?
A: It directly supports the National Critical Mineral Mission, which aims to secure domestic supply of strategic minerals and reduce import dependence.
Q5: Who signed the MoU on behalf of the two organisations?
A: I.S. Jasper Rose, Executive Director (Mines & Land) of NLC India, and Dr. K. Ramesha, Director of CSIR-CECRI, signed the agreement.