AC SA engages in the manufacture of STAG's mechanical and electronic components of modern LPG and CNG autogas systems for petrol and Diesel engines. The firm also produces electronic harnesses for the automotive and household appliance industries. Its products include autogas STAG, auto parts, e-mobility competence center (EMCCA), and outsourcing. The company was founded in 1986 and is headquartered in Bialystok, Poland.