Indigenous Communities and Activists Fight Against Kok River Contamination in Thailand

• Hundreds of villagers, monks, and activists completed a six-day 'Peace Walk' along Thailand’s Kok River to demand urgent action against severe transboundary water contamination.
• The river, which originates in Myanmar’s Shan State, shows dangerous levels of arsenic and lead, threatening drinking water, irrigation, and local fisheries.
• Environmental groups link the pollution to rare earth and mineral mining operations in Myanmar financed by Chinese investors.

Conflict and Protests

• On July 6th, marchers heading to the Chinese Consulate-General in Chiang Mai were met with a police blockade. The resulting confrontation left two protesters with serious injuries, including a broken arm and dislocated shoulder.
• Demonstrators have filed complaints regarding the use of force, while civil society groups in Bangkok have demanded an independent investigation and accountability for the mining networks causing environmental harm.

Threats to Environmental Defenders

• Activists in Thailand face increasing use of Strategic Lawsuits Against Public Participation (SLAPPs), which impose heavy financial and psychological burdens.
• A notable case involves environmental defender Sumeth Rainpongnam, who faced a 50-million-baht (USD 1.5 million) lawsuit for his advocacy, a tactic critics say is designed to silence dissent.

Indigenous Stewardship

• Indigenous groups, including the Karen, argue that environmental impact assessments frequently fail to incorporate traditional ecological knowledge.
• Communities have actively opposed large-scale infrastructure projects, such as the Yuam–Salween Water Diversion, citing lack of consultation and threats to forests and river systems.
• The campaign calls for stronger recognition of Indigenous land rights, meaningful community participation in decision-making, and transparent, sustained regional cooperation to protect the rivers for future generations.