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  • Home > Company > History
  • History
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  • history
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  • 1974
  • 05
  • Founded Tong-Il Boiler Manufacturing Co.(private company)
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  • 1974
  • 05
  • Established Tong-Il Boiler & Industries Co., Ltd
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  • 1974
  • 09
  • Obtained production license from Korean government for marine equipment,
    pressure vessels, industrial boiler
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  • 1974
  • 02
  • Obtained production license from Korean government
    for high pressure vessels & special tanks(e.g., gas tank)
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  • 1974
  • 04
  • Shop approved by DNV, LR, GL, KR, ABS, BV
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  • 1974
  • 06
  • Obtained ASME certificates(S, U, U2)
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  • 1974
  • 11
  • Renewed ASME certificates
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  • 1974
  • 10
  • Obtained ISO-9001 certificates for boiler and pressure vessel(DNV)
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  • 1974
  • 07
  • Obtained DNV class I.
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  • 1974
  • 08
  • Established an affiliated company, Y & S Co., Ltd.
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  • 1974
  • 01
  • Extended a first factory
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