China’s yuan has strengthened to its highest level against the US dollar in nearly three years, with its official fixing rate also firming amid growing uncertainty over the American currency. On Wednesday afternoon, the offshore yuan traded at 6.867 per US dollar, its strongest level since April 2023. The same day, the People’s Bank of China set the yuan’s midpoint rate – also known as the daily fixing – at 6.9321 per US dollar, also the strongest since May 2023. The currency has appreciated...