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- April.1976
- Established the Sewon Industrial Machinery at #312, Youngdeungpo-dong 2ga, Youngdeungpo-gu, Seoul, Korea.
- Dec.1986
- Signed the Technology License Agreement with Compair Broom Wade in U.K.
- Jan.1987
- Moved to the expanded factory at #223-1, Seoknam-dong, Seo-gu, Incheon Metropolitan City, Korea.
- April.1987
- Designated 17 country wide agents in korea.
- July.1989
- Designated as a Small & Medium Prospective Enterprise (Kookmin Bank)
- Jan.1989
- Designated as a Military Supplier for Ministry of Defense(#3424)
- Oct.1989
- Designated as an Active Modernization Practicing Enterprise.(Small & Medium Business Corporation)
- Nov.1989
- Designated as a Quality Cintrol Coaching Enterprise of Industry Promotion Administration.
- April.1991
- Certified with the Korean Standards.(Small Piston Type Air Compressor #8299)
- Feb.1992
- Passed the Air Compressor Fixture Design & Performance Test for Hazardous Machine of korea Occupational Safety Agency.
- Feb.1994
- Moved to the expanded factory at #71BL-6LT of Namdong Instrial Complex.
- Oct.1995
- Converted the Sewon Industrial Machinery to an incorporation.
- Nov.1997
- Selected as an Enterprise hiring the Industrial Technology Personnel.(Military Manpower Administration)
- Oct.1999
- Designated as a Technology Innovation Development Enterprise.(Small & Medium Business Administration)
- Mar.2001
- Designated as a Small & Medium Business Venture Enterprise.(Small & Medium Business Administration)
- May.2005
- Sewon Industrial Machinery acquired by Air Star.
- Oct.2005
- Developed the korea first 200HP Container Type Compressor.
- May.2006
- Developed a new Direct Type Air Compressor.
- Oct.2006
- Developed a new V-Belt Type Air Compressor.
- Feb.2008
- Developed a 250HP All In One Package Air Compressor.
