BYD Company Limited, along with its subsidiaries is engaged in the research, development, manufacture and sale of rechargeable batteries, automobiles and related products, handset components, liquid crystal display (LCD) and other electronic products. The Company operates in four business segments. The rechargeable battery and other products segment comprises the manufacture and sale of lithium-ion batteries and nickel batteries principally for mobile phones, electric tools and other portable electronic instruments and new energy products. The mobile handset components segment comprises the manufacture and sale of mobile handset components, such as housings, keypads and the provision of assembly services. The automobiles and related products segment comprises the manufacture and sale of automobiles and auto-related moulds and components. Its others segment comprises, the non-manufacturing business of the Company.