Boonchai Bencharongkul

Total Access Communication Public Co., Ltd. is engaged in the provision of wireless telecommunication services and sale of handsets and accessories. It operates under the Mobile Telephone Service and Related Services; and Sales of Handsets and Starter Kits segments. The company was founded in August 1989 and is headquartered in Bangkok, Thailand.

Private Property Co., Ltd. is a private investment holding Thai company. The company is based in Bangkok, Thailand. and has subsidiaries in Thailand.

United Communication Industry Public Co. Ltd. designs, develops and distributes telecommunication equipment. The company also provides data communications, consulting, system maintenance services. It is located in Bangkok, Thailand.

Bch Holding Co. Ltd. provides securities brokerage services.

Benchachinda Holding Co., Ltd. is a leading digital technology service provider in Thailand for over 60 years. The company is based in Bangkok, Thailand, and has subsidiaries in Thailand. The Thai company, also known as Benchachinda Group (BCG), is dedicated to developing the country's telecommunication infrastructure and digital technology to be at the forefront of the ASEAN region. The company's goal is to enhance the quality and competitiveness of Thai organizations.