Al Yamamah Steel Industries was first incorporated as a limited liability company and later converted into a joint stock company. The company is primarily engaged in the production and selling of steel welded tubes, steel sheets, steel reinforcement bars, and three-dimensional space structures to serve buildings and infrastructure. Additionally, it produces and sells galvanized steel lighting and distribution poles, high masts, and galvanized steel lattice towers for the electrical and distribution sector, as well as communication towers. The company operates production facilities across the Kingdom, located in Jeddah, Dammam, and Yanbu.