MineArchiveAmalgamated Anthracite Collieries Ltd
Formed in 1923 by Sir Alfred Mond to consolidate a group of South Wales anthracite collieries, absorbing further companies including the Vale of Neath Colliery Co. by 1928-29 and eventually controlling around 75-80% of UK anthracite production — the combine that consolidated most of the west Wales anthracite industry between the wars, taking over pits such as Cefn Coed as sinking finished and holding them until nationalisation. Renamed Amalgamated Anthracite Holdings Ltd in 1954 and A.A.H. Ltd in 1970.
| Also recorded as | Amalgamated Anthracite Collieries; Amalgamated Anthracite Holdings Ltd (from 1954); A.A.H. Ltd (from 1970) |
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Mines operated
| Mine | Region | Years |
|---|---|---|
| Aberpergwm Colliery | Neath Port Talbot | 1929–1947 |
| Caerbryn Colliery | Carmarthenshire | 1926–? |
| Carway Colliery | Carmarthenshire | ?–1947 |
| Cawdor Colliery | Carmarthenshire | 1930–1941 |
| Cefn Coed Colliery | Neath Port Talbot | 1928–1947 |
| Cross Hands Colliery | Carmarthenshire | 1930–1947 |
| Cwmgorse Colliery | Neath Port Talbot | ?–1947 |
| Diamond Colliery | Powys | ?–? |
| Gellyceidrim Colliery | Carmarthenshire | ?–1947 |
| Glyncorrwg Colliery | Neath Port Talbot | 1928–1947 |
| Glynhebog Colliery | Carmarthenshire | 1926–? |
| Great Mountain Colliery | Carmarthenshire | 1926–1947 |
| Gurnos Colliery | Powys | 1923–1928 |
| Gwaun Cae Gurwen Colliery | Neath Port Talbot | 1928–1947 |
| International Colliery, Abercrave | Powys | 1932–? |
| Llandebie Colliery | Carmarthenshire | 1923–1947 |
| Pantyffynnon Colliery | Carmarthenshire | ?–1947 |
| Ponthenry Colliery | Carmarthenshire | ?–1936 |
| Pontyberem Colliery | Carmarthenshire | 1926–1947 |
| Pontyclerc Colliery | Carmarthenshire | 1932–1934 |
| Tir-y-Dail Colliery | Carmarthenshire | 1923–? |
| Trimsaran Colliery | Carmarthenshire | 1931–? |
| Yniscedwyn Colliery | Powys | 1923–1947 |
| Ystradgynlais Colliery | Powys | 1925–1938 |
Record created: 1 September 2026 · Last researched: 1 September 2026