MineArchiveGuest, Keen and Nettlefolds Limited
Formed in 1902, incorporating the former Dowlais Iron Company's interests; operated Fochriw Colliery until its sudden 1924 closure.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Abercynon Colliery | Rhondda Cynon Taf | 1903–1931 |
| Bedlinog Colliery | Merthyr Tydfil | ?–? |
| Bedlinog Drift | Merthyr Tydfil | 1929–1931 |
| Blaendare Colliery | Torfaen | 1949–? |
| Cae Glas Colliery | Merthyr Tydfil | 1920–1924 |
| Cwmbargoed Colliery | Merthyr Tydfil | 1902–1924 |
| Fochriw Colliery | Caerphilly | 1902–1924 |
| Nantwen Colliery | Merthyr Tydfil | 1902–1931 |
| North Tunnel Colliery | Merthyr Tydfil | 1908–1924 |
| Pant-y-Waun Colliery | Merthyr Tydfil | 1902–1924 |
Record created: 2 September 2026 · Last researched: 2 September 2026