anthracite coal eand porter vietnam

North Korea Gains in China Coal Exports as Vietnam Bows Out ...

Jul 19, 2015 ... North Korea was the only country to boost coal shipments to China this year as Vietnamese supply slumped.

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Anthracite - Wikipedia

Anthracite is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal except for graphite. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon...

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