Ruentex Engineering & Construction Co., Ltd. is a Taiwan-based company engaged in construction and civil engineering contracting. It operates through three segments: Construction, Construction Materials Business, and Interior Decoration Design. Its activities include mechanical and electrical installation, water supply installation, refrigeration and air conditioning, civil and precast engineering planning, design and consultancy, import and export trade, distribution and agency of building materials and equipment, and interior decoration design, construction, and garden greening design. The company also produces and sells precast beams, columns, slabs, exterior walls, and other precast structural components, as well as masonry wall priming and finishing materials, tile adhesives, self-leveling cement, dry-mixed cement mortar, and cement and semi-finished cement products. Ruentex Resources Integration Co., Ltd. was founded in 1975 and is based in Taipei, Taiwan.