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Ironworks in the Rhymni valley
1824 Forman and Co built three furnaces on land leased from the Marquis of Bute (who actively encouraged the enterprise). It was located on the west bank of the Rhymney River, opposite the Rhymney Ironworks on the other bank. The blast furnaces 'were of a somewhat pretentious style of architecture, having a front of Egyptian design.'
From 1825 both concerns were operated together by Forman & Co and became known as the Rhymney Ironworks.
1829 On William Forman's death he held shares in the Bute and other ironworks.
1830 Two blast furnaces, but neither was in operation.