PRODUCTS
WELCOME TO DOS MALAYSIA
DOS is a well known Thai brand of environmentally-friendly products, including septic tanks and water storage tanks. We have been producing and selling more than 300,000 tanks under DOS brand a year and our products have over 1,000 channels of distributions (through modern trading agencies, shops and dealers) throughout Thailand. We have also been launching marketing campaigns to meet the needs of consumers and we have also been repaying the society via several social contribution programs. More information can be found at www.dos.co.th

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KNOWLEDGE
NANO TECHNOLOGY
Thammasorn Group Co., Ltd., at present ,We have the objective to response most customers satisfaction by covering on Waste Water Treatment Systems and Water Keeping in both household and industry section. In addition, our company has also expanded business in environment section as following;

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COMBAC NANO
CERTIFICATE