'Dark cloud' of trade war hovers over Chinese yuan's globalization 

• The U.S.-China tariff war is adding to weakness in the yuan, as Beijing seeks to promote it as a global currency in line with the country's growing economic clout.
• Internationalization of the renminbi could slow as the trade war drags on, analysts say.
• However, they say, the story surrounding the yuan's future is complex and can't be summed up only in relation to China's trade tensions with the U.S.