Great Wall Builders Ltd. (GWBU) is engaged in manufacturing and distributing an electro cracking devise designed to reduce emissions, lower fuel consumption and improve engine performance. It manufactures and distributes rights to the Start Fuel Efficiency and Emission Device (FEED), which is an aftermarket device for internal combustion engines. The technology uses a high-voltage electric current to break long-chain hydrocarbon molecules into shorter, lighter more volatile molecules. The device produces a number of benefits, including lower emissions, reduced fuel consumption, and improved engine performance. The technology can be applied to a range of different types of engines, diesel and gasoline powered, heavy equipment, as well as consumer vehicles. On March 28, 2012, the Company completed the acquisition of assets of DPOLUTION International, Inc.