Welsh Slate - The Company

Penrhyn Quarry was operated  by Alfred McAlpine (now Carillion) from the 1960's.  In 1997 Alfred McAlpine acquired the Blaenau Ffestiniog, Pen yr Orsedd and Cwt-y-Bugail quarries from the Williams company.  In December 2007 the assets of Welsh Slate were acquired by Kevin Lagan and directors of Welsh Slate. The new company is Welsh Slate Limited trading as Welsh//Slate.

Kevin Lagan is a Belfast based businessman with worldwide interests in cement, brick and roof tile manufacturing, slate distribution as well as property development, house building  contracting and quarrying.

Welsh//Slate continue to operate the four quarries for roofing slate, aggregates and architectural products.

In July 2010 Welsh Slate Limited acquired the assets of Omya's slate mineral processing business at Blaenau Ffestiniog.  The business produces a range of slate granules and powders.