UK coal imports by type and country of origin 2014 (latest available comprehensive data):
Anthracite: EU 42,000 tons, Russia 35,000, other countries 34,000, Colombia 9,000, South Africa 7,000. Total 127,000 tons.
Steam coal: Russia 16.2mt, Colombia 9.7mt, USA 8.0mt, EU 0.7mt, other countries 0.6mt, South Africa 0.1mt. Total 35.3mt.
Coking coal: USA 3.0mt, Russia 1.4mt, Australia 1.2mt, Canada 0.4mt, other countries 0.2mt, EU 32,000. Total 6.3mt.
Imports from 'EU' includes coal from other countries routed through the EU.
Source: Digest of UK energy statistics 2015, London: HMSO, 2015 (contains 2014 data), p.44.
South Wales underground mines working 2014: Aberpergwm (Energybild Mining Ltd); Dan-y-Graig No.4 (Three D's Mining Ltd); Nant Hir No.2 (NH Colliery Ltd). Also one on care and maintenance: Unity (Unity Mine Ltd). [All produce anthracite].
South Wales surface mines working 2014: Glan Lash (Bryn Bach Coal Ltd), East Pit, Nant Helen and Selar (all three Celtic Energy Ltd); Ffos-y-Fran (Miller Argent (South Wales) Ltd); Tower (Tower Regeneration Ltd). Also one with production suspended: Bwlch Ffos (Horizon Mining Ltd, in administration). [I believe that all these except for Ffos-y-Fran and Tower produce anthracite?]
Source: as above, p.59.
I'm aware that Aberpergwm has since ceased production, and at least one of the surface mines working in 2014 (Selar) has since suspended production.
In 2014 UK underground and surface mines produced 1.4mt of anthracite, 10.2mt of steam coal, and 99,000 tons of coking coal. Total 11.6mt.
UK anthracite consumption 2014: electricity generation 0.7mt, patent fuel manufacture 0.3mt, industry 0.4mt, domestic 0.2mt. Total 1.6mt.
(Difference between supply and consumption results from stock changes).
Incidentally, UK heritage railways used 13,000 tons of steam coal in 2014.
Source: as above, p.53.
Incidentally, UK concessionary coal supplied in 2014 totalled 42,600 tons.
Source: as above, p.51.