- 1864
- Foundation of Broughton Copper Co.
- 1889
- Elmore’s Patent Copper Depositing Company, Leeds formed
- 1902
- Elmore and its successors become Leeds Copper Works (and later Yorkshire Copper Works)
- 1934
- ICI Metals purchases Broughton Copper Co., Salford, Manchester
- 1934
- Yorkshire Copper Works introduces the ‘Yorkshire’ capillary fitting for plumbing
- 1948
- ICI selects Kirkby, Liverpool as the site for a new copper tube plant and work begins
- 1950
- First tubes produced
- 1954/5
- Broughton plant closed
- 1955
- Kirkby plant officially opened
- 1958
- Yorkshire Imperial Metals formed, jointly owned by ICI Metals Division and Yorkshire Copper Works, based in Leeds. Kirkby works becomes part of this company.
- 1964
- Kirkby factory extended with the construction of ‘C’Bay
- 1968
- YIM becomes wholly owned by Imperial Metal Industries Ltd (new company formed from ICI Metals)
- 1971
- First “spinner” drawing machines installed in ‘C’Bay
- 1977
- IMI floated off from ICI as a separate plc
- 1981/2
- Installation of new 5000T press
- 1983
- Yorkshire Copper Tube Ltd set up as a separate company with its own directors, sales and administration. Includes Barrhead, Scotland re-drawing tube factory, which had been part of Yorkshire Copper Works before 1958
- 1986
- Major investment programme begins with complete re-equipment of ‘B’ Bay with state-of-the-art Schumag and “spinner” drawing machines and automated handling equipment
- 1991
- Programme continues with work in ‘A’Bay, with the aim of supplying growing export markets round the world
- 1992
- Closure of Barrhead copper tube works and all production is now concentrated at Kirkby
- 1993
- Official opening of re-equipped Kirkby factory
- 2002
- Ownership of Yorkshire Copper Tube Ltd transferred from IMI to KM Europa Metal
- 2003-2008
- Integration of Yorkshire Copper Tube Ltd into KME Group, with ongoing investment programmes and efficiency improvements. Name changed to KME Yorkshire Ltd
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All the phases of KME development are described in the section on the