New York--Global Sources Ltd. has added such vertical markets as auto parts and accessories, stationery and office equipment, and lighting and electrical to its network of business marketplaces. The Web developer said all of the vertical marketplaces could be accessed through its corporate Web page. The vertical-industry focus will not interfere with Global Sources' strategy of also developing geographic business trading exchanges in such markets as Asia and South America. Each vertical market site includes software applications for communicating and trading with business partners, as well as industry news and trade, travel and export information. Global Sources said it has accumulated 213,000 buyers and 90,000 suppliers so far.