They were Yang Hongzhun, general manager of the Kimilsungia-Kimjongilia Greenhouse in Hunchun, China, Liu Chensheng, board director of the Shenyang Korean Trade and Investment Consulting Co. Ltd., Choe Ryong Ho, vice-president of Yanbian University of Science and Technology of China, and Ri Yong Ho, managing director of the Dandong Shengmin Trading Co. Ltd., China, and their parties.