A group of 5 members from Cho Heng Rice Vermicelli Factory Co., Ltd. visited to Siam DENSO Manufacturing Co., Ltd. (SDM) and Siam KYOSAN DENSO Co., Ltd. (SKD) for observing the green area development activities at DENSO Eco Park. In the study visit program, the development activities towards sufficiency based school and Eco School model at Wat Ban Kao School are also included. The group has participated in Eco product training activity for grades 4th students and also explored Happy Aloe Vera Garden for School project and Aloe Vera products shop. The overall objective of the visit is to obtain knowledge and experience for applying in further sustainable development of their corporate social responsibility activity.