DOS ONGROUND WATER TANK
UNDERGROUND WATER TANK
PURE WATER CONTAINER
ULTRA WASTE WATER TREATMENT
HERO WASTE WATER TREATMENT
ONSITE WASTE WATER TREATMENT
DOS LITETITE
GREASE TRAP
G-TEK GREASE TRAP
D-SURE GREASE TRAP
DOS ECO-TEK
DOS FENCE'S GARBAGE SHELTER
ADDITIONAL
GRUNDFOS HOME PUMP
HITACHI HOME PUMP
NO NEED CLARIFIER TANK
DOS ECO FUEL
ประกาศบริษัท
รวมเบอร์ติดต่อฉุกเฉิน
Thammasorn Group Co., Ltd. had been established in 1991 by Mr.Dhiti Towiwat and engineer companion group including environmentalist. The main objective is to run business in order to help and resolve environment problem in Thailand. Initially, our company has run business in the field of water and water treatment. Both of government section and private company has relied on our company to be one of the successful in some projects under Total Water Management Concept and product trademark Since our company has also been more relied from customers, we expanded water and water treatment business to other related environmental business; e.g. trash management, expand product field from Onsite Waste Water Treatment and Water Tank to Incinerator, corpse kiln, sorting out machine and completed trash management. After that, our company has changed concept from Total Water Management to Total Environment Management in order to cover more services.

Thammasorn Group Co., Ltd., at present ,We have the objective to response most customersR 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;

1. Thammasorn Company Limited

Onsite waste water treatment and water tank product group and has a role for working system and career development

Authorized capital 300 million baht

           Website : www.dos.co.th, www.thammasorn.co.th

2. Thammasorn Engineering Company Limited

Bio-Gas production and systems ranging from small to large.

Authorized capital 4 million baht

          Website : www.dos-te.com

3. Siam Waste Management Company Limited

Consulting company about completly waste water treatment and management concept

Authorized capital 5 million baht

           Website : www.wastemanagement.co.th,www.siamwaste.com

4.Repro House Company Limited

Our latest young company (door,fence and window business)

Authorized capital 40 million baht

          Website : www.reprohouse.co.th,www.lynn.co.th

5. Thammasorn Energy And Environmental Management Company Limited

Clean energy production technology--Biodrying System,Autoclave,Sysgazz,Biogazz,Biodiesel and Emulsions

Authorized capital 10 million baht

          Website : www.teemthai.com

      6. Thammasorn Nano Solution Company Limited

Proceed a business about production that use high-level technology,SILVER split go out level farm paticle swells out,casue top most effciency in microorganism suppression

Authorized capital 1 million baht

          Website : www.snanos.co.th