Logistics giant ProLogis of the United States has cast a vote of confidence in the mainland's booming trade outlook by making equity investments totalling US$500 million since it first moved into that market in 2003. And as the largest foreign logistics investor in the mainland, the company promises more to come. ProLogis has set up offices in 19 Chinese cities and has an aggressive expansion programme planned. 'We will keep up this growth pace in the future,' said Angela Zhao Mingqi, vice-president of ProLogis's investment management department. By the end of the year, the Denver-based and New York-listed group would have 1.5 million square metres of logistics space in the mainland, Ms Zhao said. The plan is to increase operating premises at a pace of 800,000 to one million square metres a year over the next few years. Targeting investment of US$2 billion by 2010, the firm is encouraged by the mainland's sustained buoyant economy and the growing affluence of its population to be confident about this expansion programme, she said. In addition, manufacturers need warehouse space for inbound and outbound shipments in what is now the world's biggest manufacturing base, and to serve the international trade that has blossomed at mainland ports. Noting that Shanghai was ranked the second-largest container port in the world last year, ProLogis believes the mainland is the biggest growth market for logistics, Ms Zhao said. Despite competition from a number of international as well as domestic players, she was confident that ProLogis could maintain and expand its market share.