Gypsum rock is mined from our opencast quarry and underground mine at Knocknacran, County Monaghan.

The rock is loaded by tracked mass excavators and transported to a crushing plant. After passing through primary and secondary roll type crushers, where the material is reduced in size, the rock is blended in a homogeniser, where its quality is controlled using data obtained from laboratory analyses of automatically controlled samples. The crushed rock is conveyed from the homogeniser and then transported by road to the manufacturing facility near Kingscourt.

Rock is supplied to the cement manufacturing companies in Ireland where it is used as an additive in the manufacture of cement.

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