Average price of hard coking coal recorded by BHP Billiton for six months ended December 31, 2016 was US$179 per ton, skyrocketed 118% from the corresponding period in 2015. Weak coking coal, meanwhile, jumped 82% to US$122 per ton in the same period. How about Indonesia’s coking coal producer Borneo Lumbung Energi (BORN), controlled by Samin Tan?To subscribe please click here