John King Chains Ltd is one of the most long-established chain producers worldwide. Originally a designer and manufacturer of mechanical handling equipment to the principal industries of mining, cement and steel, since the 1990s the business has focused on the manufacture of heavy and special series conveyor chains. John King's tradition was in the manufacture of cast link chains in irons and steels and although cast link chains remain an important part of the programme, the company additionally produces engineering class, welded steel and forged fork link chain. This allows John King to offer the widest product range of any manufacturer.