BEIJING (Reuters) – Cities in China’s eastern province of Anhui are issuing plans to curb production in the steelmaking, non-ferrous smelting, cement and coal-fired power sectors over the coming winter in a drive to meet a politically crucial air pollution target.

Anhui, a key non-ferrous smelting province, took the initiative to curb output even though it has been excluded from Beijing’s winter smog “battleplan” applying to 28 cities in the smog-prone northern region.

The step comes after the province failed to meet its target of reducing hazardous air pollutants, known as PM 2.5, in the first seven months of this year.

In 11 of 15 cities in the province, the average PM 2.5 kept rising despite efforts to eliminate polluting coal-fired boilers and vehicles.

The city of Tongling, home to one of the country’s largest copper smelters, Tongling Nonferrous Metals Group Holdings, has asked some major cement, smelting, steel pelletising and chemical firms to cut capacity by 30 %, according to a statement seen by Reuters and confirmed by people with knowledge of the matter.

The output reduction will take effect from October 1 until the end of this year.

The statement also identified seven companies in the coke, cement, non-ferrous smelting and stone-mining sectors that must shut during the winter, including projects at two subsidiaries of Tongling Nonferrous Metals.