On July 22, at the invitation of the of the sponsor of “The training class on nonferrous metals development and application technology of developing countries of Year 2015”, CINF’s deputy chief engineers Prof. Chen Jianshuang and Prof. He Xingmin and some staff from international business department attended the technical communication and presentation with 31 trainees in the field of mineral resources from tens of countries in Asia, Africa and Latin America. In the meeting, CINF delegation has introduced CINF profile, technical advantages and overseas mine and metallurgical project performances. Prof. Chen Jianshuang and Prof. He Xingmin have also answered questions and communicated with all trainees.