Worldwide, coking coal resources are scarce. It is a valuable resource that must be protected. Therefore, coking coal is seldom used to separate coke.
In 2000-2007 Years, the world's ten largest coke producing countries, except China, are Japan, Russia, Ukraine, India, the United States, Poland, Korea, Brazil, Germany and Italy. In 2000, the proportion of the ten countries, together with the proportion of coking coal production in the world, accounted for 83.92% of the world coking coal output, and then the proportion of coking coal kept up the trend in the fluctuation, and in 2007 was 89.58%.