| | CETDC |
| CHINA
EXTERNAL TRADE DEVELOPMENT COUNCIL November
1971 ~ April 1973 | |
| | OMI |
| ORIENTAL
MERCHANDISE INC. April ~ November,
1973 | |
| | COSA
LIEBERMANN | | COSA
LIEBERMANN TAIWAN LTD. November
1973 ~ April 1974 | |
| | KUNNAN
/ Pro-Kennex | | KUNNAN
ENTERPRISE LTD. April 1974 ~ April 1982
| |
| | AKTIF
/ arena | | AKTIF
CORPORATION 1980 ~ 1982 |
|
| | WINTIDE |
| WINTIDE
SPORTING GOODS CO., LTD. April
1982 ~ April 1986 | |
| | STARWIN |
| STARWIN
INTERNATIONALCO., LTD. April
1986 ~ April 1994 | |
| | ROCKWIN |
| SPORTING
GOODS SDN. BHD. MALAYSIA 1990
~ 1994 | |
| | POYANG |
| POYANG INTERNATIONAL
CO., LTD. June 1994 ~ |
|
| | SAMPE
TAIWAN CHAPTER | | Society
for the Advancement of Material and Process Engineering Director
1997 ~ 1999 Senior Director 1999 ~ 2003 |
|
| | SAMPE
TAIWAN CHAPTER | | Society
for the Advancement of Material and Process Engineering October
2006 ~ September 2003 ~ October 2006 | |