Thailand's Industry Ministry has ordered a halt to land development operations at WHA Eastern Seaboard Industrial Estate 5 (WHA ESIE 5) in Rayong province after evidence of rock blasting was discovered, despite the contractor's claims of using only mechanical breakers. A 3-day investigation deadline has been set to verify whether the blasting operation violated environmental regulations and licensing requirements. This regulatory action impacts industrial park operations and highlights enforcement of EIA compliance for major manufacturing facilities.