Myanmar's Rare Earth Boom Feeds China's Factories and Pollutes Rivers Beyond Its Borders

From Myanmar's mining hills to the world's factories

China makes about 90 percent of the world's processed rare earth products, but much of the heavy rare earth material feeding its refineries begins in northern Myanmar. There, mining in territory controlled by armed groups connects electric vehicles, wind turbines and consumer electronics to polluted waterways and a wartime economy.

Chinese customs data indicate that roughly two thirds of China's rare earth imports came from Myanmar between 2017 and 2024. In 2023, Myanmar supplied about 57 percent by volume, more than half of the total. Imports of heavy rare earths from Myanmar to China more than doubled between 2021 and 2023.

The expansion has accelerated since Myanmar's military coup in 2021. Mountains in Kachin and Shan States now contain a spreading network of access roads, acid pools and leaching pits, often operating without meaningful oversight or protection for workers, nearby communities and nature.

Thailand is already experiencing consequences downstream. In 2025, Thai authorities detected arsenic in parts of the Kok River at nearly four times the World Health Organization guideline. Other metals were also elevated. Communities reported damage to farming and fishing, while protesters demanded action against pollution upstream.

The trade also finances armed actors. After the Kachin Independence Army seized the mining towns of Chipwi and Pangwa in October 2024, it gained control over a corridor supplying Chinese processors. By early 2025, the group had imposed a 20 percent levy on exported concentrates and agreed fixed prices with traders.

As of December 3, 2025, the central problem stretches from mine sites to international markets: minerals used in clean energy technologies are being extracted through practices that contaminate watersheds, endanger livelihoods and generate revenue for groups fighting in Myanmar's civil war.

Why these minerals matter

Rare earths are a group of 17 metallic elements used in motors, screens, sensors and many other components of modern life. They help electric vehicles accelerate and wind turbines generate electricity. They also guide missiles and stabilize medical imaging equipment.

Neodymium and praseodymium are central to strong permanent magnets. Engineers add small amounts of heavy rare earths, especially dysprosium and terbium, to help those magnets remain stable in hot environments. That matters inside electric vehicle traction motors and wind turbine generators, where heat can affect performance.

Smartphones, laptops, hard drives, lasers and guidance systems also use rare earth elements. Their importance comes from the jobs they perform in small quantities across many different products.

Rare earths do not usually occur in high concentrations. Separating them requires chemistry and intense heat. Refining them into oxides and metals uses acids and organic solvents, producing waste that is expensive to treat safely.

China built a complete industry from mining to magnet production over three decades, supported by industrial policy and a large domestic market. Its network includes refineries, plants that turn refined material into metal, and magnet manufacturers. Most other countries lack that full industrial chain.

How China's mining restrictions shifted extraction abroad

China tightened controls on its domestic miners during the 2010s after severe pollution and mounting health and environmental damage. Much of the processing capacity stayed in China, while a growing share of the most polluting extraction moved across the border into Myanmar.

Kachin and Shan offer deposits near Yunnan's refining hubs, cheap labor and territory where armed groups or militias exercise power with limited oversight. Those conditions helped Myanmar fill a gap in China's supply of heavy rare earths.

Analysts estimate that 84 percent of Myanmar's rare earth exports go to China. Myanmar's dependence on that market sits alongside China's dependence on imported raw material: Chinese factories dominate processing and magnet making, yet events at Myanmar's mines and border gates can disrupt their supplies.

China's scale, technical knowledge and connected industries give Beijing influence over prices and supply. A disruption before material reaches a refinery can still travel through the chain to factories making vehicles, energy equipment and electronics around the world.

Who controls the mines and the trade

Armed actors control mining territory and collect revenue from rare earth operations. In Kachin, the Kachin Independence Organisation and its armed wing, the Kachin Independence Army (KIA), have gained ground since 2024. In Shan, the United Wa State Army administers areas adjoining China. Militias aligned with Myanmar's military also profit from mining.

Formal licensing is rare, and corporate records are opaque. Control of a mine or a border crossing can therefore matter more in practice than a public permit or a clearly documented ownership structure.

Chipwi and Pangwa became especially important after the KIA seized them in October 2024. China temporarily closed nearby border gates, then negotiated their reopening. The levy and pricing arrangements established by early 2025 made the KIA a de facto regulator of a supply corridor serving Chinese processors.

The main developments span several years:

• During the 2010s, China tightened domestic mining rules after severe pollution, helping shift extraction into Myanmar.
• After Myanmar's military coup in 2021, the mining boom accelerated. Heavy rare earth imports into China from Myanmar more than doubled between 2021 and 2023.
• In 2023, Myanmar supplied about 57 percent of China's rare earth imports by volume.
• In October 2024, the KIA seized Chipwi and Pangwa. China closed nearby border gates temporarily before reopening them after talks.
• By early 2025, the KIA had imposed a 20 percent levy on exported concentrates and agreed fixed prices with traders.
• In 2025, Thai authorities detected elevated arsenic and other metals in rivers downstream of Myanmar's mining areas.

Rare earth revenue gives armed groups money and bargaining power. The arrangements resemble those in other frontier industries, where local power brokers manage exports supplying Chinese factories across the border.

What happens inside the mining hills

Satellite analysis shows hundreds of mining sites along Myanmar's borders with China and Thailand, with dozens added in recent years. One study mapped 451 mines in the Irrawaddy Basin over the past decade. In Chipwi, observers counted thousands of leaching pits cut into hillsides.

The dominant extraction method is in situ leaching. Workers drill boreholes into hills and inject acidic solutions. They then pump out liquid containing dissolved rare earths and other substances released from the surrounding rock and soil.

The liquid goes into ponds lined with plastic. Solids containing rare earths settle out and are later burned to produce dry oxides for export. The method is cheap and fast, which helps explain its appeal to operators.

Acid also releases cadmium, lead, arsenic and traces of radioactive thorium and uranium. Failed containment allows contaminated fluids to spill into streams. Heavy rain can wash across open pits and carry pulses of polluted water downhill.

Water injection weakens slopes, while clearing forests removes roots that hold soil together. Workers describe unstable ground, sinkholes and landslides. Truck accidents are frequent, and mines often burn firewood in furnaces, causing further tree cutting.

Clearing, leaching and dumping leave scars visible from space. Some exhausted sites are abandoned with pits and ponds still in place and no remediation. The damage continues after extraction stops when polluted material remains exposed to rain and flowing water.

Workers and communities bear the costs

Workers often breathe dust and fumes without proper protection. Many develop chronic coughs, skin rashes and chemical burns after contact with acidic fluids. Landslides have buried crews, while floods and mountain collapses are recurring dangers during the rainy season.

Myanmar's weakened economy helps push people into these jobs. Since the coup, the formal economy has collapsed, and mining wages attract workers from poor communities. Men and women take day labor jobs for a fraction of the earnings collected by operators and middlemen.

Families downstream describe headaches, respiratory problems and skin conditions that appeared as mining intensified. Farmers report dead fish, reduced rice yields and sick livestock as water quality worsened.

Researchers sampling water and soil in northern Myanmar have found extremely acidic pH levels and elevated concentrations of ammonia, chloride and toxic metals near and downstream of mines. The pH scale measures how acidic or alkaline water is; these results show the strong acidity associated with the extraction process.

At some locations, water is unsuitable for drinking, irrigation or fish culture without substantial treatment. Acidic solutions dissolve metals from the rocks holding the rare earths and, when poorly contained, carry those metals into surface water and groundwater.

Metals can attach to sediment and move slowly through ecosystems, making the harm persistent. Local leaders also describe growing drug abuse, crime and exploitation in settlements formed around mining zones, where an influx of cash and outsiders adds pressure to communities.

Thailand's rivers carry pollution beyond the border

The Kok and Sai rivers begin in Myanmar's mining hills, cross into northern Thailand and eventually join the Mekong. Pollution released upstream can therefore reach people far from the operations producing it.

In 2025, Thai authorities found arsenic in parts of the Kok at nearly four times the World Health Organization guideline, alongside elevated levels of other metals. Residents had noticed an unusual orange yellow tint in the water before the monsoon. Officials advised people not to touch the river.

Communities in Chiang Rai and Chiang Mai reported losses after irrigation canals and fish ponds became contaminated. Economists estimate damage to farming, fishing and tourism in northern Thailand at roughly $40 million.

Protesters in Chiang Rai called for stronger action and demanded that China and Myanmar pressure mining operators to stop polluting upstream. Their concerns extend beyond drinking water to income, food production and the ability to use rivers safely.

The Mekong supports tens of millions of people. In Cambodia, about 60 percent of protein comes from wild caught fish, much of it from the Mekong system. Wider heavy metal contamination could cause severe and lasting harm as metals accumulate in sediments and fish tissue, and floodplains used for agriculture could become unsafe.

Thai agencies have discussed sediment barriers or small dams to trap contaminated deposits in the Kok. River specialists question whether these structures could manage river flows and pollution spread across an entire basin. Many agree that stopping contamination at its source is the only durable solution.

Minerals connect the conflict to international politics

The KIA's gains illustrate how mineral deposits and export routes can change the balance of power. Revenue from the concentrate levy now flows to Kachin coffers, while traders operate under terms agreed with the group in early 2025.

China faces supply risks from Myanmar even while it dominates processing and magnet production. Beijing has also tightened export controls on some technologies and raw materials, increasing the stakes of any interruption in the wider supply chain.

India has shown interest in partnerships that could reduce dependence on Chinese supplies. The United States and its allies have launched critical mineral initiatives and passed laws aimed at diversifying sources and improving recycling.

Engagement with actors inside Myanmar is complicated by conflict and human rights concerns. Agreements with armed groups carry legal and moral risks and can strengthen wartime economies by giving those groups additional revenue.

International efforts to secure minerals therefore intersect with the struggle over territory inside Myanmar. Buyers seeking alternative supplies still face questions about who controls extraction, who receives the proceeds and what protections exist for communities around the mines.

Why companies struggle to trace their supplies

Heavy rare earths from Myanmar typically leave as concentrates and enter China for refining into oxides and metals. Manufacturers then turn them into magnets used in electric vehicle motors, wind turbines, drones and consumer devices sold worldwide.

Many companies struggle to identify where the rare earth content in their products began. Material passes through several stages, and traders commonly mix supplies from different regions to meet price and volume targets. Informal mines and inconsistent documentation in conflict zones make tracing it harder.

Buyers can require refineries to keep batches separate and commission independent audits that include access to mining sites. Testing isotopic and trace element fingerprints can also help check origin claims by examining characteristics of the material.

Procurement policies can exclude minerals linked to conflict or severe environmental harm. Import controls can set environmental and community protection requirements that material must meet before entering a market.

Recycling is growing, but most recycled rare earths currently come from manufacturing scrap rather than discarded products. Collection systems for used magnets remain at an early stage. Magnets are often glued into devices or buried inside them, making recovery expensive.

What could reduce demand and pollution

Engineers have options that can reduce demand for heavy rare earths at the margin. Motor designs using less dysprosium are spreading, some wind turbines use drive trains based on different materials, and ferrite magnets can replace rare earth magnets in other appliances.

These approaches can moderate demand growth and allow more time for better governance, although none eliminates the need for rare earths. Recycling faces its own collection and cost limits, leaving extraction practices central to protecting people and rivers.

Governments and industry could pause new extraction in Myanmar until enforceable safeguards are in place. China could tighten import controls on concentrates lacking proof of safe production and strengthen oversight of Chinese contractors working across the border.

Thailand, Laos and Cambodia could expand river monitoring and share open data so residents can see what is in their water. International bodies could support independent sampling of waterways and soils. Enforcement could also target the chemical supply chains that deliver the acids and reagents mines need to operate.

If extraction continues, basic requirements should include lined containment with leak detection, neutralization of acid before discharge and stormwater controls capable of handling heavy rain. Replanting plans, worker safety standards and community consent processes would address other parts of the damage.

Communities would also need a share of revenues and grievance mechanisms through which to raise complaints. Without enforceable protections, continued extraction risks more polluted rivers, greater distrust between neighboring countries and supply interruptions reaching factories far from Myanmar.

At a Glance

• China produces about 90 percent of processed rare earth products, while Myanmar supplies a large share of its heavy rare earth raw material.
• Myanmar accounted for roughly two thirds of China's rare earth imports between 2017 and 2024 and about 57 percent by volume in 2023.
• Mining expanded after Myanmar's 2021 coup, with hundreds of sites mapped and thousands of leaching pits reported in Chipwi.
• The KIA seized Chipwi and Pangwa in October 2024 and imposed a 20 percent levy on exported concentrates by early 2025.
• Acidic extraction fluids can release toxic metals into water and soil, while workers face chemical exposure, landslides and floods.
• Thai authorities detected arsenic in parts of the Kok River at nearly four times the World Health Organization guideline in 2025.
• Estimated losses to farming, fishing and tourism in northern Thailand reached roughly $40 million.
• Complex supply chains and material mixing make it difficult for global companies to trace rare earths back to individual mines.
• Recycling and alternative designs can moderate demand growth, while monitoring, import controls and enforceable mining safeguards can address harm at its source.