Insimbi Industrial Holdings Ltd, formerly Insimbi Refractory and Alloy Supplies Limited, is a South Africa-based company that provides the steel, aluminum, cement and foundry industries with resource-based commodities, such as ferrous and non-ferrous alloys, as well as refractory materials. The Company's segments are Foundry, Steel, Refractory and Plastics. The Foundry segment consists of the divisions, which service the foundry and non-ferrous industry, including automotive and heavy, aluminum industry and the powder coating industry. The Refractory segment consists of the divisions that service the steel and cement industry's refractory requirements, as well the supply of industrial heat-resistant textiles. The Steel segment supplies both steel and polypropylene fibers, services the welding and optical industries, and supplies the steel industries' raw material requirements. The Plastics segment consists of the divisions that service the plastic packaging industry.