The sales volume of gas increased from 969 million cubic meter in 2001 to 1.506 billion cubic meter with an annual average growth rate of about 10%. Meanwhile the proportion of sales volume of natural gas in total sales volume rose from 4.98% in 2001 to 40.93% in 2006.

The marketing structure of gas is also changed year by year. The proportion of industrial and commercial users of artificial coal gas rose from 40.17% in 2001 to 48.43% in 2006 and the proportion of industrial and commercial users of natural gas was kept at about 60 % , depending on the practical situation of natural gas conversion.