Log trading is one of the main businesses. Beijing Qiangsen Technology and Trade Co. Ltd. and Inner Mongolian Guolin Forestry Resources Development Co. Ltd. conduct import and export trade with Russia. They import logs and boards of camphor, pine, larch and spruce; the main products of Zhejiang Guolin Forest Resources Development Co. Ltd. involve logs of Radiata pine, Australian pine and hemlock and logs from North American.