China will encourage metal companies to invest abroad in line with its “One Belt, One Road” initiative, and will support the financing of overseas projects, according to the statement. It also plans to speed up reforms that will give tax breaks to domestic miners and take measures to encourage exports of refined metals derived from imported ore, like copper and tin.

http://www.bloomberg.com/news/articles/2016-06-16/china-plans-to-boost-base-metal-stockpiles-amid-commodities-glut