shanghai decision unite state investigate china trade practice unilateralist bar fangs hurt side china state news agency xinhua say tuesday u.s. president donald trump monday authorize inquiry china allege theft intellectual property administration officials say could cost unite state much 600 billion u.s. trade representative robert lighthizer year look whether launch formal investigation china trade policies intellectual property white house u.s. industry lobby group say harm u.s. businesses job still soon say unite state intend showdown china trade exaggeration late bar fangs washington part china like unilateral move washington hurt china unite state long run xinhua say xinhua say chinese exporters could first suffer trade sanction pain would soon spread u.s. industries households add china will resolve dispute two side dialogue investigation likely cast shadow u.s. relations china large trade partner trump ask beijing put pressure north korea give nuclear program ken jarrett president american chamber commerce shanghai say statement tuesday trade north korea link say investigation sign grow u.s. discontent chinese trade practice president executive order reflect build frustration chinese trade market entry policies particularly pressure american company part technologies intellectual property exchange market access say chinese company operate unite state face pressure support action recognize importance u.s.-china commercial tie also encourage progress toward equitable trade relationship say china state media say u.s. trade probe hurt countries