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In terms of the region's air quality, the average density of PM2.5, fine particulate matter that causes smog, fell 9.1 percent from the previous year.

Over nearly two decades, Ningxia has made continuous efforts in returning farmland to forest and grassland and prohibiting grazing, and Xihaigu has turned green once again.

"Take the use of steel bars for example. Digitalizing the process of cutting, processing and installation can result in more efficient use of raw materials and reduction of waste and pollution," said Chen Xiaofeng, assistant president of Glodon.

As key players in Asia and the world, the two countries enjoy various common interests and wide cooperative space, he noted, adding that with joint efforts of the two sides, China-Japan relations have gotten back on track and maintained a positive momentum.

"What our company does echoes with the country's call for innovation-driven development," said Chen, promising to step up independent research and development to become a world-class cloud computing company based on an open-source ecosystem.