▁P RC ▁on ▁ 1 ▁January ▁ 1 9 7 9 . ▁In ▁January ▁ 1 9 8 2 , ▁he ▁became ▁the ▁director - general ▁of ▁BO FT . ▁During ▁his ▁office ▁term , ▁he ▁worked ▁towards ▁simpl ifying ▁laws ▁and ▁reg ulations , ▁and ▁also ▁strength ening ▁personnel ▁management ▁at ▁the ▁BO FT . ▁To ▁reduce ▁the ▁trade ▁sur plus ▁between ▁Taiwan ▁and ▁the ▁US , ▁he ▁led ▁trade ▁miss ions ▁to ▁cover ▁almost ▁all ▁US ▁states ▁as ▁part ▁of ▁a ▁campaign ▁that ▁drew ▁considerable ▁attention . ▁He ▁also ▁participated ▁in ▁a ▁number ▁of ▁additional ▁trade ▁miss ions ▁to ▁major ▁trad ing ▁nations ▁to ▁enh ance ▁economic ▁and ▁trade ▁relations ▁and ▁resolve ▁trade ▁disput es . ▁He ▁vig or ously ▁promoted ▁trade ▁liberal ization ▁and ▁global ization . ▁He ▁also ▁author ized ▁banks ▁to ▁process ▁import - export ▁perm its , ▁promoted ▁professional ▁training ▁and ▁introduced ▁a ▁rot ating ▁system ▁for ▁economic ▁and ▁trade ▁represent atives ▁station ed ▁outside ▁Taiwan . ▁His ▁efforts ▁helped ▁build ▁Taiwan ' s ▁very ▁substantial ▁foreign - exchange ▁res erves ▁and ▁made ▁Taiwan ▁the ▁world ' s ▁ 1 3 th ▁largest ▁trad ing ▁nation . ▁ ▁As ▁a ▁member ▁of ▁the ▁r uling ▁Ku om int ang ▁( K MT ), ▁he ▁was ▁named ▁to ▁the ▁Central ▁Committee ▁of ▁K MT ▁in ▁July ▁ 1 9 8 8 . ▁ ▁S iew ▁was ▁elected ▁a ▁member ▁of ▁the ▁Legisl ative ▁Y uan ▁from ▁ 1 9 9 6 ▁to ▁ 1 9 9 7 .