OFFICE : 115 Preeda View,Soi Chokechaichongjumroen, Rama3 Road,Bangpongpang, Yannawa, Bangkok 10120
Tel : 0-2295-2137 - 9 ,Fax : 0-2295-2140 ,Email :  
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     Roi Et Flour Co.,Ltd., established in 1985, is the first company in the group founded by Mr. Praves Nantiruj. Roi Et has grown to be one of the most reliable suppliers of Tapioca Flour to the Thai and international market. Roi-et is a leading Tapioca Flour manufacturing company with a nationwide sales network, operating as an exclusive distributor of products for the international market. Furthermore, Roi-et is now developing its own brand of quality products for distribution locally and to the international export market. Thai Trafo Manufacturing Co., Ltd. is the second company to produce and distribute standard and quality distribution transformers to the domestic and overseas market. Our plant is in Rayong, close to the Eastern Seaboard of Thailand. The company´s core business groups are:

      Agriculture Group

      Energy Group

      Industrial & Manufacturing Group

      Real Estate Group


      During the past few years, our company has expanded its business aggressively in all of its core business groups. With a unique and wide variety of manufacturing bases within the Group, as well as a solid network of domestic and international business partners, the company stands out as one of the leaders in sales and marketing, distribution and after sales services, as well as having the combined strength and resources to develop new products for local and overseas markets.

Our Vision

To be a reliable supply source of high quality products and outstanding services for our customers. To grow our business through partnerships, by sharing resources and working together with our business partners, for the benefit of all parties. To meet the demands of our international business partners, and maintain a high level of customer satisfaction.


Our Mission

Our goal is to maintain a respectable business through professional and ethical management principles and practices, to generate greater value for our customers, shareholders, business partners and employees, and to launch our products into the international market.



We are always strongly committed to serving our customers well through a high level of customer service.



We will work collaboratively with our customers and business partners to create innovative solutions that make our products and services more productive, practical and efficient to deliver the best value possible for all parties.


Creativity & Innovation

We use our expertise, ideas and best efforts to develop innovative, imaginative and creative solutions to all challenges.