U.S. government plans to allow companies to defer import duties as a way to mitigate COVID-19 financial pressures has been something of a damp squib, with few companies able to take advantage of the narrow window. There was nonetheless a 21.4% slump in the U.S. Treasury income from customs duties in April with a 21.4% year over year drop to $4.11 billion. That was the lowest since June 2018 and was the result of collapsing imports from China and reduced tariff rates. While companies haven’t been able to cut their tariff burden with the Treasury, there’s still the opportuni...