representing manufacturers and sellers of goods located in the People's Republica of China in arranging sales of their goods in the United States and other countries; representing purchasers in the United States and other countries in arranging for the purchase of goods provided by manufacturers and seller of goods located in the People's Republica of China; and providing technical and commercial assistance, consulting services, and organizational "know-how" information and advice to customers related to the international purchase and sale of goods between the People's Republic of China and the United States and other countries