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  • 1938
    • ICI began manufacture of tetraethyl lead (TEL) at Northwich, Cheshire
      French affiliate established
  • 1948
    • Associated Ethyl Co Ltd (forerunner
    • to Associated Octel) acquired by Shell,
    • BP, Texaco, Mobil and Chevron
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  • 1970
    • Continuing decline of TEL following introduction of US Clean Air Act
  • 1985
    • Development of Octel Petroleum Specialties business
  • 1989
    • Great Lakes acquires controlling
      interest in Associated Octel
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  • 1994
    • Associated Octel purchases E. I. du Pont
      petroleum additives business
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  • 1998
    • Spin-off from Great Lakes
    • Octel Corp. listed on NYSE, May 1998
    • Purchase of Octel Deutschland GmbH (Pluto)
    • TEL Marketing Alliance with Ethyl Corp.
  • 1999
    • Joint venture Octel Starreon formed
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  • 2001
    • Acquisition of:
      • Gamlen Industries SA
      • CP3500 companies
      • Bycosin AB
  • 2004
    • Purchase of remaining 50% of Octel Starreon
    • Purchase of Leuna Polymer
    • Acquired privately held Fintex (US)
  • 2005
    • Formation of global fuel additives business
    • Acquired ProChem (US)
  • 2006
    • Company renamed
    • Move from NYSE to NASDAQ
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  • 2012
    • Acquired Strata Control Services
  • 2013
    • Acquired Bachman Services
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  • 2014
    • Acquired Independence Oilfield Chemicals
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  • 2016
    • Acquired in 2017 Huntsman (Europe)
  • 2017
    • Acquired BioSuite
    Image Innospec