China's coal output and investment fell in the first four months of this year, data from the China National Coal Association revealed yesterday.

The coal output from January to April totaled 1.15 billion tons, down 2 percent from the same period of last year, while fixed-asset investment in the coal mining industry declined 6.6 percent, according to the association.

The revenues of the country's major coal producers in the first quarter fell 2.6 percent from the same period of last year and their profits dived 40.3 percent, said Wang Xianzheng, president of the association.