Story perspectives

800 Illegal Rare-Earth Mines Threaten Mekong Water, Rice

4/30/2026

Summary

Story summary

The Stimson Center’s satellite analysis mapped almost 800 unregulated rare-earth mines along Mekong tributaries in Laos, Myanmar and Cambodia.
Naresuan University researchers found high arsenic, mercury, lead and cadmium in tributary water, fish and sediment.
University scientists and local officials launched a smartphone app for fishers to upload suspect-catch photos to a citizen-science database.
Kok River farmers warned that heavy-metal buildup could contaminate rice exports and jeopardize their livelihoods.

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Story summary

The Stimson Center’s satellite analysis mapped almost 800 unregulated rare-earth mines along Mekong tributaries in Laos, Myanmar and Cambodia.
Naresuan University researchers found high arsenic, mercury, lead and cadmium in tributary water, fish and sediment.
University scientists and local officials launched a smartphone app for fishers to upload suspect-catch photos to a citizen-science database.
Kok River farmers warned that heavy-metal buildup could contaminate rice exports and jeopardize their livelihoods.