Authorities Investigate Chemical Contamination at Rayong Industrial Site
Officials in Rayong are inspecting a former metal processing plant in the Map Ta Phut Industrial Estate following reports of hazardous chemical residue in stagnant water.
On November 6, 2026, a task force led by the Rayong Damrongtham Center, alongside the Department of Industrial Works and the Industrial Estate Authority of Thailand, inspected the former Thai-Scandic Steel factory site in the Map Ta Phut Industrial Estate. The inspection followed public concerns regarding chemical residues found on the premises. The facility, which ceased metal plating operations five years ago, was recently sold to NS-Siam United Steel. During site demolition and renovation, water was discovered in concrete pits previously used for chemical metal cleaning. Laboratory analysis conducted on September 18 revealed that the stagnant water contains high acidity and heavy metal levels exceeding safety standards. Authorities have confirmed that the contaminated water has not been discharged outside the facility boundaries. Currently, the two companies involved are negotiating responsibility for the cleanup and management of the hazardous materials. Officials are now conducting further assessments to determine if any leakage has impacted the surrounding soil or water table. For residents and visitors in the Rayong area, this situation highlights ongoing environmental monitoring efforts within industrial zones. While there is no immediate indication of public exposure, further investigations are required to confirm the full extent of the contamination and the effectiveness of containment measures.
