Hoben International Limited was founded in the late 1960's as Hoben Quarries Limited occupying 40 acres, midway between Ashbourne and Matlock in the heart of Derbyshire. The ceramic, glass and refractory industries benefit from the special sands, flours, high grade bauxite and siliceous mixes processed on site which are supplied to a wide range of industrial and civil engineering applications. Hoben International are the world's leading manufacturer of Foundry Plaster which is a gypsum bonded investment formulated for casting Non Ferrous Metals. Foundry Plaster is used in the Rubber Plaster Mould (RPM) process which utilises a reclaimable pattern of silicone rubber. The company also manufactures SightGRIP®, a highly visible anti-slip coated aggregate for use on highways, pedestrian and leisure areas, industrial and retail parks and car parking facilities.