June 22, 2018, Mr. Witthaya Neetitham, Secretary of the Office, AMLO, as the head of the Anti-Corruption Working Group and Police Major General Kamol Reanracha, Commander of Counter Corruption Central Investigation Bureau launched the search, in collaboration with officers from Department of Forestry and Department of Land, at the TPI cement plant. The operation covered 3 sites, believing to be operation site and storage of forged title deeds, sold to TPI.

The case was expanded from previously arrest of Mr. Jaroonsak Eaksawat, a retired land officer, who confessed for title deed forgery, being sold to TPI, to 2 more subjects, Mr. Jakrawut Nittayasutt, a former member of the National Legislative Assembly, currently an advisor to TPI Polene Public Company Limited, and Mr. Narongpol Kaewsarn, a plant supervisor, for an offense of supporting the counterfeiting activities.