BYD Company Limited (BYD) is a Hong Kong-based joint stock company. The Company, 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. It operates in four segments: the battery and other products segment comprises the manufacture and sale of rechargeable batteries for mobile phones, emergency lights and other battery related products; the mobile handset components segment comprises the manufacture and sale of LCD and other handset components; the automobiles and related products segment comprises the manufacture and sale of automobiles and auto-related moulds and components, and the others segment comprises, principally, non-manufacturing business of the Company and its subsidiaries.