INEOS Seal Sands plant is located in Teeside, UK. It is one of the largest manufacturers of Acrylonitrile in Europe and it is the largest producer of purified acetonitrile in Europe. Seal Sands uses leading INEOS technology, which is also used at the Green Lake plant in Port Lavaca, Texas.

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INEOS acquired Seal Sands from BASF in 2008.