WASHINGTON (REUTERS) - With over US$66 billion (S$89.6 billion) in total capital, China has passed Japan to become the second-largest contributor to the system of development banks that provide some US$200 billion in subsidised loans to poor countries each year, a new report said on Thursday (Nov 18).

While China still receives loans and other aid from multilateral institutions like the World Bank and United Nations agencies, it has also emerged as one of the most powerful donors, according to the Centre for Global Development.

It said that China, the world's second-largest economy after the United States, is the fifth largest overall donor across the range of United Nations agencies focused on development, including the UN Development Programme, World Food Programme and World Health Organisation.

Beijing's role as a major donor, shareholder, aid recipient, and commercial partner of international institutions gives it "uniquely influential position", the think-tank said, citing a detailed look at China's role at 76 global institutions.

"There's been a lot of attention to China's Belt and Road lending to developing countries, but a lot less on its growing footprint at global institutions like the World Bank," said Mr Scott Morris, a senior fellow at the centre.

China's expanding role at these institutions - and its role as the world's largest creditor - has raised concerns in the US and elsewhere in recent years, but Mr Morris cautioned against viewing its role at the banks as a threat.

"This isn't necessarily a cause for alarm," he said. "It's better for everyone to have China working inside the system instead of outside of it."

Some of the increase has been driven by automatic contributions based on the size of China's growing economy.

But Beijing has also scaled up its voluntary donations, including at the World Bank's low-income lending arm, the International Development Association, where it is now the sixth largest donor.