Run business in investment by holding shares in subsidiary companies and associates to operate 4 types of businesses, which are as follows;(1) Business of investment and development of Solar Farm, Engineering, Procurement and Construction (EPC), and Operation, Maintenance and Monitoring (OM&M)(2) Business of distribute and installation of solar roof (Solar Roof)(3) Authorized sales and service partner of SMA Solar Technology AG (SMA), Germany.(4) Business of manufacture, distribution and installation of Metal Steel Roofing with one-stop service (Steel Roof)