1.In April/2001 ,
   Yu Jing company set up.
      2.In June/2002 ,
      invested Yu Jing electronic first factory in
      DongDung/mainland China.
      3.In Feb./2003 ,
      established BVI company ”Yu Jing international Co.,Ltd”
      in H.K.
      4.In April/2003 ,
      applied ISO-9001 and passed in Aug.
      5.In Aug./2003 ,
      production high-end transformer for medical equipment
      industry class F.
      6. In Aug./2004 ,
      invested Yu Jing electronic second factory.
      7. In Aug.2005 ,
      production filter amount over 2 Million per month .
      8. In Aug/2005 ,
      production big power transformer for mobile.
      9. In Oct./2005 ,
      finishing resonant transformer LP-series and PFC choke
      QP-series.
      10. Until now ,
      we got eighteen patents in Mainland China ,four in USA ,
      seven in Japan and seventeen in Taiwan.