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China has seen continuous improvements in its air quality, with concentrations of PM2.5 particulate matter down by 10 percent in 337 cities across the country in the first half of this year, according to the Ministry of Ecology and Environment. PM2.5 refers to particles with a diameter of 2.5 micrometers or less that can invade even the smallest airways.

China has sufficient policy tools and new measures to further optimize its foreign trade structure and deepen ties with new markets, especially those involved in the Belt and Road Initiative, in the second half of the year, a senior customs official said on Friday.

China has stepped up efforts to fight against telecom fraud in recent years. Sichuan police have cracked 1,757 telecom and online fraud cases and frozen one billion yuan of fraudulent money so far this year.

China hopes to strengthen communications between the foreign affairs departments of China and the Democratic People's Republic of Korea to implement the important consensus the two countries' leaders reached and promote development of bilateral ties, Vice-Foreign Minister Kong Xuanyou said on Thursday.

China is not among the top 10 steel importers to the US.