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Operated by Ibstock Brick, registered in Ibstock Leicestershire.

The plant at Throckley in unusual in that it has no clay pit of its own. Clays which fire to a red colour were imported from Red Barns Quarry at Wardley on South Tyneside which is 22 kin from Throckley. Throckley also imports fireclay from a number of opencast coal sites in the Morpeth area. The flreclays are blended in varying proportions with the Coal Measure mudstones to produce a range of buff-coloured facing bricks. The plant also produces a variety of red facing bricks using the Coal Measure mudstones only. All bricks are produced using the extrusion process and go to local markets in the North East of England although a significant proportion is sold into the Scottish market.