— On October 29, the comprehensive transaction prices of 5500, 5000 and 4500 kcal thermal coal in Qinhuangdao Port were 1,202, 1,096 and 961 yuan per ton respectively, up 123, 116 and 104 yuan respectively compared with September 24. ... Conversion relationship of natural gas units: 1 ton is equal to 1380 cubic meters. 5. The …