China-Botswana business forum is held in Beijing, capital of China, Aug. 31, 2018. (Xinhua/Li Xin)

Botswana's President Mokgweetsi Masisi delivers a keynote speech at China-Botswana business forum in Beijing, capital of China, Aug. 31, 2018. (Xinhua/Chen Yehua)

Jiang Zengwei, head of China Council for the Promotion of International Trade, addresses the China-Botswana business forum in Beijing, capital of China, Aug. 31, 2018. (Xinhua/Li Xin)

Botswana's President Mokgweetsi Masisi delivers a keynote speech at China-Botswana business forum in Beijing, capital of China, Aug. 31, 2018. (Xinhua/Li Xin)