| May 2009 |
Registered the License for Reinforced Concrete Works |
| june 2007 |
Registered the License for Steel Structure Works |
| May 1999 |
Registered the License for Scaffolding S6tructures, Underwater Construction Works |
| May 1999
|
Established Sang-A Development Co., Ltd.
|
| April 1997
|
Transferred to corporation and changed the Trade Name to Sang-A Industrial Machines Co., Ltd.
|
| February 1986
|
Founded Sang-A Industrial Machines Co., Ltd.
|
