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Duport of Tipton, an industrial holding company, the name being derived from Dudley Port.
1956 Purchased Briton Ferry Steel Co from the Iron and Steel Holding and Realisation Agency. As part of the deal Neath Steel and Galvanizing Co became a wholly owned subsidiary of Briton Ferry Steel Co.
1967 One of the larger steel makers not subject to nationalisation
1967 Sold the goodwill, patents, trademarks of Revo Electric Co to English Electric Co; the manufacturing capacity would be redirected to other parts of the business; the Llanelly Foundry and Engineering Co operations were transferred to Neath and merged with Baglan Foundry and Engineering Co.
1970 Took over Slumberland Ltd and its associated companies; Duport was the largest steel produced in the private sector and this merger would give it 30% of the UK beds market (including Vono's share) but the logic and price was questioned.
1981 Closed the South Wales engineering steels plants. British Steel forged a new £130 million joint company with GKN and bought out the steelmaking parts of ailing Duport. British Steel's decision to buy out Duport's re-rolling plants in Sheffield and the Midlands followed months of delicate negotiations involving Government ministers. The interests acquired comprised London Works, Flather Bright Steels and Nationwide Steel Stock. As a result of this Duport's 350,000 tonne electric plant at Llanelli, which had only been commissioned in 1979) was closed with the loss of 1200 jobs. 
1982 Failed to sell domestic products division to Silentnight; closed some foundries and reorganised production amongst the remainder. At the end of the year, agreed to sell beds business to Airsprung of Trowbridge.