Critical minerals

1. Meaning, criticality and technological importance

Critical minerals are identified through two broad considerations: their economic or strategic importance and the risk of supply disruption. Risk may arise from concentrated production, dependence on imports, geopolitical instability, limited substitutes, low recycling rates or lengthy mine-development periods. Geological rarity alone does not determine criticality. A relatively abundant element can become critical when commercially viable deposits, processing facilities or specialised technologies are controlled by a small number of countries.

Criticality is country-specific and changes with technology, industrial demand and trade conditions. India’s 2023 list contains 30 entries: antimony, beryllium, bismuth, cobalt, copper, gallium, germanium, graphite, hafnium, indium, lithium, molybdenum, nickel, niobium, phosphorus, potash, rare earth elements, rhenium, selenium, silicon, strontium, tantalum, tellurium, tin, titanium, tungsten, vanadium, zirconium, cadmium and platinum group elements. Some entries represent groups rather than individual elements.

Applications extend beyond electric vehicles. Copper supports electricity networks; lithium and graphite are important battery materials; selected rare earths enable powerful permanent magnets; gallium and germanium serve specialised electronic and optical applications. Potash and phosphorus are important for fertilisers, connecting mineral security with agricultural productivity. Strategic minerals and critical minerals overlap, but the former term particularly emphasises defence and national-security requirements.

• Critical does not necessarily mean rare, radioactive or metallic.
• Rare earth elements are one category within the wider critical-minerals framework.
• Battery chemistries differ: lithium iron phosphate batteries do not require nickel or cobalt in their cathodes.

2. World distribution and the geography of supply chains

Mineral supply chains have several geographically distinct stages: exploration, mining, concentration, refining, component manufacture and recycling. A country rich in ore may lack the facilities to produce battery-grade chemicals or high-purity metals. Consequently, diversified mining does not automatically produce a resilient supply chain. Processing concentration can remain a major vulnerability even when raw materials come from several continents.

Australia is a major producer of hard-rock lithium, commonly from spodumene-bearing pegmatites. Chile and Argentina produce lithium from salar brines; together with Bolivia they form the Lithium Triangle. Bolivia possesses substantial lithium resources, but resource size must not be confused with established commercial output. The Democratic Republic of the Congo dominates mined cobalt supply, while Indonesia is central to global nickel production. China has a particularly strong position in rare earth processing, graphite processing and several battery-material supply chains.

Ore characteristics shape both industrial geography and environmental pressures. Nickel occurs in sulphide deposits and tropical laterites, requiring different processing routes. Cobalt is commonly recovered as a by-product of copper or nickel mining, so its supply also responds to markets for those host metals. Several minor critical minerals, including gallium and germanium, are largely by-products, limiting the ability to expand production independently when demand rises.

• Map focus: Australia, China, Indonesia, the Democratic Republic of the Congo, Chile, Argentina and Bolivia.
• Supply concentration should be assessed separately for mining, refining and manufacturing.
• Export controls, transport disruption and rapid demand growth can magnify existing supply risks.

3. India’s resource base and exploration challenges

India’s varied geology offers potential for several critical minerals, but exploration, processing capabilities and commercial viability remain uneven. In 2023, the Geological Survey of India reported an inferred lithium resource of 5.9 million tonnes in the Salal–Haimana area of Reasi district, Jammu and Kashmir. This was a G3-stage resource estimate, not a proved reserve or evidence of an operating lithium mine. Further exploration, metallurgical testing and economic and environmental appraisal are necessary.

Peninsular pegmatite belts are prospective for lithium, tantalum and related minerals. Graphite occurrences are known in states including Arunachal Pradesh, Odisha and Jharkhand. Odisha’s ultramafic belts, including Sukinda, are associated with nickel-bearing mineralisation. Copper mining centres include Khetri in Rajasthan, Malanjkhand in Madhya Pradesh and the Singhbhum belt in Jharkhand. These locations should be related to geological belts rather than memorised only as isolated points.

Coastal heavy-mineral sands in Kerala, Tamil Nadu, Odisha and Andhra Pradesh contain minerals such as ilmenite, rutile, zircon and monazite. Monazite carries rare earths and thorium, creating an interface between resource development and atomic-mineral regulation. India’s beach-sand rare earth resources are not automatically equivalent to a secure supply of all magnet-grade rare earths: mineral composition, separation technology and downstream manufacturing determine their usefulness.

• Exploration stages progress from G4 reconnaissance to G3 preliminary exploration, G2 general exploration and G1 detailed exploration.
• A reserve is the economically mineable portion established after applying relevant technical, economic, legal and environmental considerations.
• Domestic occurrence alone does not imply import independence or commercial production.

4. Laws, institutions and mineral-security initiatives

The Mines and Minerals (Development and Regulation) Act, 1957 is the principal framework for mineral development. Its 2023 amendment introduced an exploration licence for specified critical and deep-seated minerals. It also empowered the Union government to auction mining leases and composite licences for 24 critical and strategic minerals listed in Part D of the First Schedule. State governments grant the concessions following the prescribed process and receive the relevant mineral revenues.

The amendment removed six mineral categories, including lithium-bearing minerals, from the statutory atomic-minerals list, broadening participation under the amended framework. This did not remove all rare earth or monazite-related restrictions. Another important distinction is that the Ministry’s policy list of 30 critical minerals and the statutory list of 24 critical and strategic minerals are not identical instruments.

The National Critical Mineral Mission, approved in January 2025, seeks to strengthen exploration, mining, beneficiation, processing, recycling and overseas acquisition. The Geological Survey of India undertakes geoscientific exploration, while the Indian Bureau of Mines supports mineral-sector regulation and information. Khanij Bidesh India Limited, or KABIL, is a joint venture of NALCO, Hindustan Copper and MECL for overseas mineral assets. India joined the Minerals Security Partnership in 2023, complementing domestic measures with international cooperation.

• Auctioning a block is not equivalent to commencing production; exploration, clearances, financing and infrastructure remain necessary.
• Resource security requires processing technology and skilled personnel as well as access to deposits.
• Overseas partnerships reduce dependence only when projects become technically and commercially viable.

5. Sustainability, recycling and examination linkages

Critical minerals enable low-carbon technologies but their extraction is not impact-free. Mining can cause habitat fragmentation, waste generation, water contamination and displacement. Lithium-brine extraction raises concerns about water balances in arid basins. Nickel laterite processing can be energy-intensive and generate substantial residues. Some cobalt supply chains raise labour-rights concerns, while monazite processing requires safe management of radioactive constituents.

A sustainable strategy combines responsible domestic mining, diversified imports, efficient material use, substitution and recycling. Urban mining recovers materials from discarded electronics, batteries and other products. India’s Battery Waste Management Rules, 2022 and E-Waste (Management) Rules, 2022 use extended producer responsibility to support collection and recycling. However, recycling cannot immediately replace primary mining because demand is growing and many products have not yet reached the end of their useful lives.

For Prelims, focus on mineral–application pairs, producing countries, Indian deposits, legal distinctions and geological terminology. For analytical questions, connect mineral security with renewable-energy expansion, electric mobility, fertiliser availability, industrial competitiveness and local community rights. Substitution also creates trade-offs: reducing reliance on one mineral may increase requirements for another or alter performance, cost and recyclability. A resilient mineral economy therefore requires lifecycle assessment rather than a simple race to maximise extraction.

• Good governance includes transparent environmental appraisal, community participation, worker protection and mine-closure planning.
• Recycling yields depend on collection systems, product design, material concentration and commercially viable recovery technologies.
• Avoid treating low-carbon technologies as having zero material or environmental footprints.

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