HP Inc.’s factories are back online, but it could take months for COVID-19’s impact to work through its supply chain. Tariff exemptions granted to Canadian aluminum producers have led to a surge in exports, hurting both U.S. producers and Mexican exporters. Also: Smithfield, JBS gorge on China pork opportunity as prices fall, sales surge; ZIM set to address finance, faces tough start to Q2 on Canada-U.S. lanes; Shipbuilding exports reach lowest since 2017 despite China order recovery; Trump takes aim at China over Hong Kong, phase 1 could be the target; EU-U.S. aerospace spat faces “diff...