Dow Chemical is an American chemical manufacturing company, headquartered in Michigan, USA. Founded in 1897, with a long history of development, today Dow is a leading, multidisciplinary chemical manufacturer in the world.

Dow Heat Transfer Oil is a product group of Dow Chemical Company. Consists of 2 main groups:

• Synthetic heat transfer oil Dowtherm, Syltherm. With operating temperatures up to 400 degrees Celsius.
  

• Glycol-based heat transfer fluid Dowtherm, Dowcal, Dowfrost. With operating temperatures from -200C to less than 200 degrees C.
   

In Vietnam, Chemizol is the distributor and supplier of Dow heat transfer oil throughout Vietnam.