Opposition MP Challenges Government Over Arsenic Contamination in Northern Rivers
A People's Party MP has criticized the government's diplomatic approach regarding arsenic pollution in northern Thai rivers, allegedly linked to Chinese-backed rare earth mining in Myanmar.
On November 15, 2026, Sorasak Samonkraisornkit, a list-MP from the People's Party, publicly questioned the Thai government's willingness to address the issue of arsenic contamination in the Kok and Sai rivers with Chinese leadership. In a social media statement, Sorasak argued that while diplomatic relations between Thailand and China remain cordial, the environmental impact of rare earth mining operations in neighboring Myanmar is severely affecting local communities.
According to the MP, scientific data indicates that arsenic levels in these rivers have reached nearly five times the safety threshold established by the World Health Organization (WHO). He claims these mining activities, which utilize chemical extraction processes, are driven by Chinese capital and technology to support the production of electric vehicles and solar cells. The resulting chemical waste is allegedly flowing into the river systems, posing significant health and environmental risks to residents in Northern Thailand.
For residents and travelers in the region, this situation highlights potential concerns regarding water quality and environmental safety. While the government has reportedly focused on water quality testing, the MP is calling for more direct diplomatic intervention. It remains to be confirmed how the government will respond to these allegations and what specific measures will be implemented to mitigate the contamination and protect public health in the affected areas.