Direk Vinichbutr

Part of Rojana Industrial Park Public Co. Ltd., Rojana Property Co., Ltd. engages in condominium construction and development. The company is based in Bangkok, Thailand. Chai Vinichbutr has been the CEO of the Thai company since 2004.

Part of Chalong Co. Ltd., Rojana Distillery Co. Ltd. is a Thai company that produces distilled liquors. The company is based in Bangkok, Thailand. Rojana Distillery Co. was acquired by Chalong Co. Ltd. from Rojana Industrial Park Public Co. Ltd. on February 03, 2012 for $12.95 million.

Operational Energy Group Ltd produces and distributes steam electric power.

Part of Rojana Industrial Park Public Co. Ltd., Rojana Distribution Center Co. Ltd. provides sea, air and road freight forwarding, warehousing and logistics services.

Part of Rojana Industrial Park Public Co. Ltd., Rojana Industrial Management Co. Ltd. is a Thai industrial park that was established in 1988 by joint ventures between Nippon Steel Product Co., Ltd. and the Vinichbutr family. The company develops and operates an industrial park in eight locations in northern and eastern Thailand. The Rogana Industrial Park is a large-sized industrial park that is about 30 km from Remchaban deep sea port and Map Top Taputs. Due to its strategic location, it is expected to be the center of the Thai automotive industry and export processing industry. The company offers land proposals and full support from its staff. The Thai Meteorological Bureau declared the dry season on October 29, 2022, and the current water level of the Chao Player was determined to be safe.