| Date |
Event |
| 1972 |
Establishment of Yunsing Industrial Co., Ltd. |
| 1980 |
Establishment of Yunle Industrial Co., Ltd. and Yunle Plant I |
| 1982 |
Sales market expended to South East Asia |
| 1988 |
Sales market expended to Japan |
| 1991 |
Sales market expended to Mid Asia |
| 1994 |
Establishment of Yunme Industrial Co., Ltd. and Yunme Plant II |
| 1996 |
Capital of $USD 4,000,000 collected for/and the establishment of Singfong Steel Structure Co., Ltd., Hangzhou, China |
| 1997 |
Sales market expended to Middle East |
| 1999 |
Sales market expended to America |
| 2000 |
Capital of $USD 4,000,000 collected for/and the establishment of Xiamen Gissan Metal Industry Co., Ltd., China |
| 2002 |
Establishment of Shanghai Yunxin Machine Co., Ltd. Shanghai,China |