1972-87 John Desmond
1987-95 Desmond and Desmond
1995-99 D and D Mining Services
1999 JMC Mining Services ltd (Contractors in charge of sealing the mine)
The mine worked the Mynyddyslwym seam.
Publications (2)
- Booth, A.J.; Industrial Railway Society (1995); Small Mines of South Wales; pp. 72-75
- Cooke, R.A.; Lightmoor Press (2018); Gazeteer of Coal mines in South Wales and Monmouthshire