On May 14 , 2016, Mr.Kunitake Hara and staff member of Sumitomo Mitsui Auto Leasing & Service (Thailand) Co., Ltd. have cooperated with Royal Thai Navy for coral planting at Royal Thai Navy Gulf, Chonburi. This Activity is a part of CSR activity of the company. Coral reefs make up the most complex marine ecosystem on earth, essential to literally millions of plant and animal species. Regarding the El Nino phenomenon since year 2010, Coral reefs in gulf of Thailand were damaged. The water temperature was too warm and caused a coral bleaching. In order to recover the coral reef and marine ecosystem, coral planting is one of the easy way we can do.