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British Industrial History

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Tharsis Sulphur and Copper Co

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of 136 West George Street, Glasgow

1866 Sir Charles Tennant brought together various alkali makers to form the Tharsis Sulphur and Copper Co, to take over pyrite mines in southern Spain, which was incorporated as a Limited Company. As a result of Tharsis' by-products, Charles Tennant became interested in metallurgical technology.

1870 Plant established at Widnes

By 1872 Tharsis acquired seven metal-extraction companies in Britain.

The works of the Tharsis Co at Cardiff treated burnt cupreous iron pyrites, chiefly imported from Spain to various English and Scottish ports and brought to Cardiff by coastal vessels.

1885 The Widnes works were acquired by the Lancashire Metal Co Ltd.

1896 Tharsis declined the opportunity to erect a plant in the Rhineland to process pyrites, which excluded the company from accessing German metallurgical developments. Nor did it buy new mines. Charles Tennant continued as chairman until 1906.

1914 Specialities: sulphur in pyrites, refined copper in cakes, bars, ingots, purple iron ore. [1].

See Also

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Sources of Information

  • Biography of Sir Charles Tennant by Richard Davenport Hines, ODNB [1].
  • National Archives [2]