1977: Established SAM JUNG MACHINERY Co., LTD
1983: Technical License with CHAMPION BLOWER & Forge Inc. USA
1985: Supplied and Installed Axial Fans & Airfoil Fans to Seoul Subway Line# 3 & # 4
1989: Manufacturing for High pressure Turbo Blower
2006: Certificate of EC Attestation of Conformity by BV
2005: Certificate of ISO 9001 (Expiration date: 2008. 11)
2007: Certificate of ISO 14001 (Expiration date: 2010. 09)