Latest delay

The extension follows delays elsewhere in the country.

The compliance date for the Beijing program was June 27, but the municipal government has yet to release any data. However, market sources say some 50 companies have yet to hand over permits to the authorities.

In Shenzhen, four companies missed a July 1 deadline, but according to news provider Crystal Carbon, three of those have now bought the permits they needed to meet their targets.

Guangdong province has extended its deadline to July 15. The local government has announced that by July 8, 69 percent of program participants had surrendered permits.

Shanghai is the only region where compliance has gone according to plan, with all emitters meeting the June 30 deadline.