"River contamination tops govt's Chiang Rai to-do list", Bangkok Post, 30 June 2025

The Ministry of Foreign Affairs (MFA) will send an expert team to discuss measures to solve arsenic contamination in the Kok River with Myanmar authorities next week, said Foreign Minister Maris Sangiampongsa.

The discussion will focus on a joint pollution management plan, aiming to tackle the problem at its origin by implementing a protection system to control and prevent pollutants entering the water flow.

Myanmar's authority [...] had sent officers to inspect the river. The results are expected to be reported during the Thai-Myanmar Regional Border Committee meeting on July 2-3, said Ms Theerarat.

In the past month, local communities in northern Thailand cited unregulated gold mining in Myanmar's Shan State, particularly by Chinese companies, as a chief cause of the problem.