of London, collieries in Tredegar and the Rhymney Valley, Colliery Proprietors and Coal Exporters.
1866 Court case against them for allowing unlocked lamps at New Bedwallty Pits and this was the cause of an explosion that killed 26 persons. 
1873 The company was registered on 26 March. 
1927 See Aberconway Chapter XVII for information on the company and its history.
1927 See Aberconway Chapter XVIII for information on the company and its history.