Photo taken on Dec. 6, 2016 shows a Lao worker tapping rubber trees in Luang Namtha Province, Laos. A training course on natural rubber planting was held in Luang Namtha Province, Laos, Dec. 7, 2016. The course was organized by the Yunnan rubber Investment Ltd. of Yunnan state farms group company and Chinese Academy of Tropical Agricultural Sciences. (Xinhua/Liu Ailun)
