AC SA is a Poland-based company that specializes in the automotive industry. The Company is a manufacturer of Liquefied petroleum gas (LPG) and Compressed natural gas (CNG) systems under STAG brand for cars, trucks and other mobile vehicles. It offers more than 200 auto-gas products, such as: controllers, emulators, switchers, fuel level indicators, reducers interfaces, diagnostics scanners, recorders and others. The products offered by AC SA are delivered to more than 30 countries all over the world, including Germany, Russia, Ukraine, Turkey and Thailand. It operates a network of Partner Service Points (PSP) across Poland that comprises 32 professional auto-gas workshops, for whom the Company provides marketing and technical support and a system of professional training. The Company also runs Research and Development Department, which works on the products offer.As of August 10, 2012, the Company sold its entire stake in Biazet SA.