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China is concerned about the security challenges facing the Sahel region and appreciates the efforts of the Group of Five for the Sahel (G5 Sahel), namely Burkina Faso, Chad, Mali, Mauritania and Niger to safeguard peace and stability in the region, Wang said.

China has seen its installed capacity of clean power sources continue expanding with utilization optimized during the first three months of 2019, according to the National Energy Administration.

China is hoping that the G20 Summit will play a similar role to the one in London in 2009 — which produced a concerted response to the global financial crisis — and steer the world away from a path toward protectionism.

China is expected to become the world's largest 5G market by 2025, accounting for 430 million 5G connections, or one-third of the global total, according to GSMA.

China is engaged in a campaign to "seize the commanding heights of the global economy and to surpass the United States as the world's preeminent superpower", Barr said.