Industrial production of this versatile building material was started in 1929 and it has been produced and used for building construction ever since. First in Europe and now world-wide. Here in the Kingdom of Saudi Arabia, Lightweight Construction Company (LCC-Siporex) a Saudi Closed Joint Stock Company, was established in 1976 and has been producing Siporex Autoclaved Aerated Concrete (AAC) material at our plant in the Second Industrial Estate, AlKharj Road. With our continued expansion of additional manufacturing plant to sustain the growing demand, our current total production capacity has intensified to about 350,000 cubic meters of Siporex AAC products per year. After more than Forty years and having used by several thousands of projects, LCC Siporex became the leading supplier of this truly amazing material not only within the kingdom but also to GCC countries, Yemen, Jordan, Sudan, Ethiopia and as far away as Djibouti, Taiwan and Japan. Builders, engineers, architects and contractors not only appreciate the excellent properties of Siporex, but also energy-saving and pollution-free techniques used in its production. In fact, Siporex manufacturing process produces neither polluting waste gases nor dangerous residues and there is no waste of costly raw materials.