seattle u.s. tax overhaul propose republican leaders congress would deepen divisions big manufacturers like boeing co thousands small company supply accord suppliers tax trade experts u.s. automakers manufacturers rely import components also would affect proposals would tax import 20 percent rate could split sectors winners losers revamp would heighten exist tensions aerospace industry boeing aggressive cost-cutting drive fierce competition european rival airbus push suppliers low price source part materials abroad aerospace components often zigzag multiple countries company reach boeing factories washington south carolina u.s.-based suppliers boeing would face tax import part boeing top exporter among u.s. manufacturers would export jetliners tax free boeing large suppliers unite technologies corp general electric co honeywell international inc also substantial export favor republican tax package plan lay blueprint last year president donald trump speak favorably aim boost u.s. manufacture include cut corporate tax rate 20 percent 35 percent make capital investments immediately deductible lawmakers already work draft tax bill introduce early summer could delay health care change take long expect accord congressional staff propose 20 percent tax import goods effect last year norfil complex machine 40-employee company pacific washington likely would pay titanium import russia metal go part norfil make boeing land gear get assemble japan lot russian titanium go plan say doren spinner norfil ceo purchase contract price adjust cost go tax would end affect plane would cost say company say would tough pass high cost might move production low-cost locations abroad tax ridiculous think something creative say paul doran sales manager mifa subsidiary netherlands-based aalberts industries nv make precision aluminum part aerospace autos industries think company would boat colin frost chief operate officer part tool supplier carr lane manufacture co st. louis missouri say would consider manufacture overseas tax plan pass end split company think necessarily good u.s. economy say boeing say soon judge plan effect suppliers far appear likely benefit industry whole rather disrupt supply chain assessments vary company premature speculate generalize boeing spokeswoman kate bernard say boeing among 90 company include many suppliers sign letter month aerospace industries association urge congress overhaul u.s. tax system boeing also part american make coalition industry group back republican tax proposals proponents say tax reform also would strengthen dollar offset impact import tax suppliers would encourage company invest unite state tax overhaul could cut boeing taxable income estimate 44.5 billion last year accord tax experts reuters analysis boeing 2016 deliveries two-thirds boeing jetliners deliver overseas would tax exempt worth 89 billion list price likely sell discount 50 percent typical industry boeing decline comment estimate boeing would face import tax 787 dreamliner example use major part japan mitsubishi heavy industries ltd fuji heavy industries ltd kawasaki heavy industries ltd italy leonardo spa boeing also would still pay tax sales u.s. airlines new tax regime would affect defense space businesses source sell globally yet suppliers say boeing vigorous cost-saving press many outsource production low-cost countries expose potential border tax u.s. aerospace import double past decade mexico fastest-growing source 950 percent since 2006 graphic tmsnrt.rs/2n4a8o1 supply chain would face renew pressure new tax regime say david wireman manage director co-head aerospace defense consult firm alixpartners tax import propose new administration would certainly affect complex decisions choose suppliers likely would cause manufacturers change supplier relationships border tax could divide boeing suppliers