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As of the end of February, 222 polluting companies had been shut down and 26 people found responsible for pollution were detained, the Ministry of Environmental Protection said in a statement.

As of Monday, production capability of masks in China has been expanded to 110 percent of the normal level, according to data from the NDRC. Additionally, 80 percent of key companies in the non-ferrous metal sector have restored production, and those engaging in the refining business have reached 60 percent.

As of Dec 29, the last trading day of 2017, the yuan's onshore exchange rate stood at 6.5120 against the US dollar, strengthening by 6.72 percent for the year, the sharpest annual appreciation in nine years, according to calculations by financial information provider Eastmoney.com.

As of August, a total of 44,000 5G base stations have been put into operation in Beijing, and that number is expected to exceed 50,000 by the end of 2020, according to the Beijing Municipal Communications Administration.

As part of the US-China 100-day action plan to boost bilateral economic cooperation, the administration of US President Donald Trump "has taken important steps toward commercial shipment of US beef and beef products to China for the first time since 2003," the department said.