Welsh Slate is part of the Breedon Group.
The business in its current format was acquired from Alfred McAlpine in December 2007 who had since the 1960s
expanded the business from its headquarters at Penrhyn Quarry to include operations at Blaenau Ffestiniog,
Cwt-y-Bugail and Pen yr Orsedd.
In July 2010 Welsh Slate acquired the assets of Omya’s slate mineral processing business at Blaenau
Ffestiniog.
The business produces a range of slate granules and powders.
Today, Welsh Slate continues to operate in the same four
locations, producing roofing slate, architectural products and aggregates.