Shang Gong Group Co Ltd is engaged in research & development, production, sale, and maintenance of sewing machines and spare parts in China. It is also engaged in the production of auto parts, office equipment, and related trading businesses. The company provides high-end sewing products for famous automakers like Mercedes-Benz, BMW, Audi, and General Motors; in aerospace and new material fields also have large customers including Boeing, Airbus, and COMAC. It owns manufacturing enterprises in China, Germany, the Czech Republic, and Romania, and its sales network has spread across the world. Its household sewing machine brands - Butterfly, Flyman, and Bee are widely known in China and sold to overseas markets.