| Cows Mouth Quarry United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
| Bowens United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Tunnel Wall, Glen Coe United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Dunkeld, Upper Cave United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Bowder Crag United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Morlise Quarry United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
| bowens west United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| welsh slate United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
| Deep Dale United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Watch house crag, Gower United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Oxwich, Gower United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| The Bendy United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Binian United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
| Neist United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
| Bowen's Parlour (East) United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
| earl United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Vivian United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
| Johnsheugh United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
| Swamp United Kingdom of Great Britain and Northern Ireland | 1 | 0.0 % | | 1 |
| Bell Stand United Kingdom of Great Britain and Northern Ireland | 1 | 100.0 % | | 1 |
