Innospec manufacturing chemical plant at Innospec Manufacturing Park Oil Sites Road Ellesmere Port, Cheshire, England,UK, CH65 4EY

Innospec Inc., formerly known as Octel Corporation and Associated Octel Company, Ltd., is a specialty chemical company. It comprises three business units: Fuel Specialties, responsible for the development and supply of additives for fuels and which also includes the company's activities in its Oilfield Chemicals division, Performance Chemicals, which focuses on products for the Personal Care industry and also provides products for the Polymers markets, and Octane Additives, which is the last remaining non-Chinese producer of tetraethyllead (TEL) used in the manufacture of 100LL avgas throughout the world. The company has recently sparked controversy due to its being the only company that continues to export leaded petrol from the UK to Algeria despite pledging to stop several times