Ariel Plastics LtdSpeedwell Industrial Estate Staveley S43 3JPBLM British LeadPeartree Lane Welwyn Garden City AL7 3UBCelotex LimitedLady Lane Industrial Estate, Lady Lane Hadleigh IP7 6BACox Building Products LimitedCRH House, Prothero Industrial Estate, Bilport Lane Wednesbury WS10 0NTCrest Brick Slate & Tile LtdHowdenshire Way, Knedlington Road Howden DN14 7HZEasy-Trim Roofing & Construction Products Ltd12B Metcalf Drive Altham BB5 5TUFakro GB LimitedAstron Business Park, Hearthcote Road Swadlincote DE11 9DWHambleside Danelaw LtdLong March Daventry NN11 4NRIcopal - Building Products DivisionBarton Dock Road, Stretford Manchester M32 0YLIKO PLC (Ruberoid)Appley Lane North, Appley Bridge Wigan WN6 9ABKeystone GroupBallyreagh Industrial Estate Cookstown BT80 9DGKlober LimitedUnit 6F, East Midlands Ind Estate, Short Lane Castle Donnington DE74 2HAManthorpe Building Products LtdManthorpe House, Brittain Drive, Codnor Gate Business Park Ripley DE5 3NDMarley Eternit LimitedLichfield Road, Branston Burton-on-trent DE14 3HDMidland Lead Manufacturers LimitedKiln Way, Woodville Swadlincote DE11 8EDO H LimitedPO Box 1012, Great Shelford Cambridge CB22 5WRSlatescape Ltd1 Sett End Road, Shadsworth Business Park Blackburn BB1 2QJTimloc Building Products LimitedRawcliffe Road Goole DN14 6UQUbbink UK LtdUnit 33 Liliput Road, Brackmills Industrial Estate Northampton NN4 7DTUltraframe UK LimitedEnterprise Works, Salthill Road Clitheroe BB7 1PEVELUX Company LtdWoodside Way Glenrothes KY7 4NDWonderbuilds Inc LtdUnit 3, Streakes Field Road Staples Corner NW2 7GD