1979

• Established HANJOO Machine Industrial Co., Ltd.

1982

• Obtained License for Construction Work

1986

• Opened Seoul Office
• Established Kim‐Po(Janggi-Dong) Plant

1987

• Obtained License for Manufacturing of Heat Transfer Equipment on Korea Rational Energy Utilization Act
  (Pressure Vessel / Heat Exchanger / Boiler)

1991

• Obtained License for Manufacturing of Special Equipment on Korea High Pressure Gas Safety Control Law
  (Pressure Vessel / Heat Exchanger / Vaporizer)

1998

• Obtained Certificate of Authorization (ASME : “U” STAMP)
  (Boiler & Pressure Vessel)

1999

• Obtained Certificate of Authorization (ISO 9001)
  (Design & Manufacture of Pressure Vessels,Heat‐exchangers, Reactors & Columns)
• Obtained Certificate of Trade Business

2000

• ERP System Joining to LG Chem. Group
• ERP System Joining to Samsung Corp. Group
• ERP System Joining to Daelim Industrial Co., Ltd.
• ERP System Joining to Hanwha E&C Corp.
• ERP System Joining to Hanwha Chemical Corp.

2002

• IBK (Industrial Bank of Korea) Corporate Family Designation
• Certificate of Trade Business Number

2004

• ERP System Joining to Korea Gas Corp.

2006

• Established Gimpo Gunha-ri Factory

2007

• Factory Relocation (Gimpo Gunha-ri Factory)
• Factory Register Certificate
• Obtained License for Manufacturing of Special Equipment on Korea High Pressure Gas Safety Control Law
  (Pressure Vessel, Heat Exchanger, Storage Tank, Vaporizer, for Refrigerator)
• Renewal Certificate of Authorization (ASME : “U” STAMP)
  (Boiler & Pressure Vessel)
• Obtained Certificate of Authorization (ASME : “S” STAMP)
  (Power Boilers)
• Obtained Certificate of Authorization (China Special Equipment License “CSEL”)
  (Pressure Vessel “A2”)
• Obtained License of Small and Medium Business Administration

2010

• Renewal Certificate of Authorization (ASME : “U” STAMP)
  (Boiler & Pressure Vessel)
• Obtained Certificate of Authorization (ASME : “U2” STAMP)
  (Boiler & Pressure Vessel)
• Renewal Certificate of Authorization (ASME : “S” STAMP)
  (Power Boilers)

2012

• Obtained Certificate of Authorization (China Special Equipment License “CSEL”)
  (Pressure Vessel “D1”, “D2”)

2013

• Renewal Certificate of Authorization (ASME : “U” STAMP)
  (Boiler & Pressure Vessel)
• Renewal Certificate of Authorization (ASME : “U2” STAMP)
  (Boiler & Pressure Vessel)
• Renewal Certificate of Authorization (ASME : “S” STAMP)
  (Power Boilers)
• Renewal Certificate of Authorization (ASME : “NB”)
  (National Board “U”, “S”, “U2”)

2014

• Established 2nd Factory (Seo-Gu, Incheon)
• Renamed as HANJOO Machinery Co., Ltd.

2016

• Renewal Certificate of Authorization (ASME : “U” STAMP)
  (Boiler & Pressure Vessel)
• Obtained Certificate of Authorization (ASME : “U2” STAMP)
  (Boiler & Pressure Vessel)
• Renewal Certificate of Authorization (ASME : “S” STAMP)
  (Power Boilers)

2019

• Renewal Certificate of Authorization (ASME : “U” STAMP)
  (Boiler & Pressure Vessel)
• Obtained Certificate of Authorization (ASME : “U2” STAMP)
  (Boiler & Pressure Vessel)
• Renewal Certificate of Authorization (ASME : “S” STAMP)
  (Power Boilers)

2020

• Obtained Certificate of Registration (ISO 14001)
  (Design, Development and Manufacture of Pressure Vessels, Heat Exchangers, Reactors and Columns)
• Renewal Certificate of Registration (ISO 9001)
  (Design, Development and Manufacture of Pressure Vessels, Heat Exchangers, Reactors and Columns)

2022

• Renewal Certificate of Authorization (ASME : “U” STAMP)
  (Boiler & Pressure Vessel)
• Obtained Certificate of Authorization (ASME : “U2” STAMP)
  (Boiler & Pressure Vessel)
• Renewal Certificate of Authorization (ASME : “S” STAMP)
  (Power Boilers)

2023

• Relocation of the 2nd factory
  (Incheon to Hwaseong)