The index, released by China Taiyuan Coal Transaction Center (CTCTC) based in Shanxi, a coal-rich province, reflects the coal price levels and changes in the main production areas of China. It is published every Monday.
Analysts said that although the continuous high temperature had led to an increase in residential electricity consumption, the power generation at hydropower stations in southern China maintained a high level.
As a result, the coal demand of thermal power enterprises was still weak.
With more than 10,000 registered coal traders, the CTCTC is the largest coal trading center in China.