There’s a renewed risk of tariff increases in the U.S.-China trade war. The recently reduced list 4A tariffs on U.S. imports from China have already transformed solid state drive supply chains. A new national security trade review is launched covering power transformers. Also: Smith & Nephew does relatively less well as COVID-19 cuts elective surgeries; Matson hopes faster means better as COVID-19 overshadows outlook; work-from-home rescued China’s export growth in April, trade war worries rise; 2nd national security review in a week may lift tariffs on cranes, oil could be next; and the...