| http://www.w3.org/ns/prov#value | - The Chinese government encourages the commercial exploration of mineral resources, including oil, natural gas, coal gas, high-grade coal, copper, gold, high-grade manganese, sylvite and groundwater in the western regions, with emphasis on the resource-rich areas, to promote the rational exploitation and deep processing of oil, natural gas, non-ferrous metals, sylvite, phosphorus and other mineral
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