Our History

The Alfred H Knight Group was first established by Alfred Henry Knight in 1881 to provide independent weight determination, inspection, supervision and analytical services to the Metals, Minerals and Solid Fuels industry.

Our first international expansion was in Western Europe, followed by operations in Latin America including Chile, Peru and Mexico. The company continued to grow, opening facilities in North America, Eastern Europe, Asia, Africa, Australia and Canada.

  • 1881
    Alfred H Knight was first established in Swansea, UK by Alfred Henry Knight.
  • 1973
    Laboratory and office opened in South America. Peru base set up first, then sampling services in Chile & Brazil and an agency in Argentina. Established operations in Bilbao, Spain.
  • 1981
    Established laboratory in Pompton Lakes, New Jersey. AHK starts to expands its expertise and capabilities into other markets, such as coal.
  • 1986
    Knight Energy Services established operations at AHK HQ in Eccleston Grange, UK with subsidiary coal operations in Russia and the Baltics. Established operations in Holland. Opened laboratory in Chile.
  • 1988
    Established operations in Hong Kong to service clients in Chinese ports.
  • 1999
    Purchased state-owned service Laboratories and Testing House from the Government in Zambia. Established a mineral export port in Townsville, Australia.
  • 2007
    AHK Joint venture in China.
  • 2015
    Established operations and laboratory in DRC. AHK Headquarters moved to larger, modern premises in the UK, a short distance from Eccleston Grange.
  • 2018
    Opened Tianjin laboratory in China. Established operations in South Korea.
  • 2020
    Established operations in Germany, AHK Deutschland GmbH. Expanded the John Knight Laboratory, opening Villiers Copper Laboratory in the UK.
  • 2021
    Alfred H Knight celebrates 140 years!
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Gradcracker Limited, October House, Long Street, Easingwold, York, YO61 3HX
01347 823822 | info@gradcracker.com | Company registration number: 6370348
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