uring owa ▁past ▁and ▁present ", ▁by ▁D iane ▁V ance ▁ ▁External ▁links ▁ ▁University ▁of ▁Queensland : ▁Queensland ▁Places : ▁R asm ussen ▁ ▁Category : Sub ur bs ▁of ▁Town sv ille <0x0A> </s> ▁Y i ▁X iqu n ▁( Sim pl ified ▁Chinese : ▁ <0xE8> <0xA1> <0xA3> <0xE9> <0x94> <0xA1> 群 ) ▁( born ▁ 1 9 4 7 ) ▁is ▁a ▁Chinese ▁entrepr ene ur . ▁ ▁From ▁ 1 9 8 6 ▁to ▁ 1 9 8 7 , ▁Mr . ▁Y i ▁was ▁in ▁charge ▁of ▁the ▁Be ij ing ▁Municipal ▁Government ▁Econom ic ▁Str ucture ▁Reform ▁Committee , ▁and ▁from ▁ 1 9 8 7 ▁to ▁ 1 9 9 1 , ▁he ▁was ▁Head ▁of ▁the ▁X ich eng ▁District ▁in ▁Be ij ing . ▁He ▁has ▁served ▁as ▁the ▁Chair man ▁of ▁Be ij ing ▁Enter pr ises ▁Hold ings , ▁Ass istant ▁to ▁the ▁Mayor ▁of ▁Be ij ing ▁and ▁Director ▁of ▁the ▁Econom ic ▁and ▁Foreign ▁Trade ▁Commission ▁of ▁Be ij ing ▁Municip ality ▁and ▁the ▁Management ▁Committee ▁of ▁the ▁Be ij ing ▁Econom ic ▁and ▁Technology ▁Development ▁Area . ▁He ▁joined ▁the ▁Be ij ing ▁Enter pr ises ▁Hold ings ▁in ▁ 1 9 9 9 . ▁He ▁was ▁eventually ▁appointed ▁as ▁Chair man ▁of ▁Be ij ing ▁Enter pr ises ▁Hold ings ▁in ▁ 2 0 0 3 . ▁Under ▁his ▁leadership ▁as ▁Chair man , ▁Be ij ing ▁Enter pr ises ▁Hold ings ▁under w ent ▁a