BMW have their main European four-cylinder engine plant at Hams Hall near the M42. Subaru UK and Isuzu UK (IM Group) are sandwiched between the M6 and the M42 (south of junction 8) at the Coleshill Manor Office Campus, west of Coleshill. Off the B4117 in the north of Coleshill is Thomas & Betts UK (former Adaptaflex), which makes flexible conduits. TNT UK is off the B4116 in the west of Atherstone, and Aldi UK is on the other side of the road; Aldi opened its first UK store on 17 July 1990 in Stechford, Birmingham, and now has around 700 UK stores. 3M have an abrasive products (sandpaper) factory in the east of the town. Daw Mill, next to the railway, was Britain's biggest coal producer near the B4098/B4114 junction at Arley and Over Whitacre. Holland & Barrett are Europe's largest health food chain, with 1,400 stores. Triton Showers (the UK's largest shower company) are based in Nuneaton; Adams Childrenswear, formerly on the A4254 on the Attleborough Fields Ind Est, closed most of its stores in 2010.