On 4 May 2018, management & associates of DENSO (Thailand) Co., Ltd. (DNTH) together with DENSO Thailand Workers Union Joined  “Make a Good Things,  With Our Heart” Big Cleaning Day Activity, one of the volunteer activities of Samutprakarn province. In order to let the government sectors by Samutprakarn province and the surrounding communities, private sectors, business sectors, schools and others join hand together to clean and improve the better scenery along the footpath sidewalk of  Theparak Rd. Nearly 400 volunteers joined this activities.