On 8 August 2019, Ms.Jiraporn Kumhomkul, Assistant Manager of Administration division of DENSO (Thailand) Co., Ltd. (DNTH) and volunteers attended  the “Big Cleaning Day, Green, Clean & Environment Care” activity to pay tribute to Her Majesty Queen Sirikit, the Queen Mother on the auspicious occasion of her 87th Birthday Anniversary on 12 August 2019, not only to help preserve environment but also to tighten the relationship with nearby communities in Wellgrow Industrial Estate and Phimpha municipality, Chachoengsao province. All volunteers helped cleaning and garbage collecting at North Phimphawas temple, South Phimphawas temple and Suneesathatham temple.