As traders worldwide wait to see if U.S. President Donald Trump once again holds off on putting new tariffs on Canada and Mexico, the head of the U.S. Treasury Department has highlighted one potentially promising avenue for America’s neighbors.

Mexican President Claudia Sheinbaum says she hopes to speak with U.S. President Donald Trump now that he has announced plans to impose tariffs on Mexico and Canada starting Tuesday.

Finance ministers and central bankers from the G20 top economies gather in South Africa on Wednesday and Thursday, for a meeting marred by the absence or curtailed attendance of key members and disputes over the main issues of climate, debt and inequality.