• 1945.08.15

  Mukho Harbor Office, Transport Bureau, U.S. Military Government

• 1955.12.12

  Mukho Regional Maritime Affairs Office

• 1961.10.01

  Mukho Regional Maritime Affairs Bureau, Ministry of Transportation

• 1976.03.13

  Mukho Regional Port Administration Office

• 1977.12.12

  Mukho Regional Port Authority, Korea Maritime and Port Administration

• 1980.05.06

  Donghae Regional Port Authority, Korea Maritime and Port Administration

• 1996.08.08

  Donghae Regional Port Authority, Ministry of Maritime Affairs and Fisheries

• 1997.05.24

  Donghae Regional Maritime Affairs and Fisheries Office, Ministry of Maritime Affairs and Fisheries

• 2008.02.29

  Donghae Regional Maritime Affairs and Port Office, Ministry of Land, Transport and Maritime Affairs

History of Sokcho Office

• 1955.02

  Sokcho Branch Office, Mukho Regional Maritime Affairs Office

• 1960.10

  Sokcho Branch Office, Mukho Regional Maritime Affairs Bureau, Ministry of Transport

• 1980.05

  Mukho Regional Maritime Affairs Office, Ministry of Transport

• 1980.05

  Sokcho Branch Office, Donghae Regional Port Authority

• 1996.08

  Sokcho Branch Office, Donghae Regional Port Authority, Ministry of Maritime Affairs and Fisheries

• 1997.05

  Sokcho Branch Office, Donghae Regional Maritime Affairs and Fisheries Office

• 2004.02

  Sokcho Office, Donghae Regional Maritime Affairs and Fisheries Office

• 2008.02

  Sokcho Office, Donghae Regional Maritime Affairs and Port Office

History of Mukho Office

• 1941.08

  Mukho Port opened

• 1945.08

  Mukho Harbor Office, Transport Bureau of U.S. Military Government

• 1961.10

  Mukho Regional Maritime Affairs Office, Ministry of Transport

• 1980.05

  Mukho Branch Office, Korea Maritime and Port Administration

• 1997.05

  Mukho Branch Office, Donghae Regional Maritime Affairs and Fisheries Office

• 2004.02

  Mukho Office, Donghae Regional Maritime Affairs and Fisheries Office

• 2008.02

  Mukho Office, Donghae Regional Maritime Affairs and Port Office

History of Samcheok Office

• 1976.11

  Designated as trading port (Port Act)

• 1977.04

  Samcheok Branch Office, Mukho Regional Port Administration Office

• 1980.05

  Samcheok Branch Office, Mukho Regional Port Authority

• 1991.10

  Designated port to be open (Port Open Act)

• 1997.05

  Samcheok Branch Office, Donghae Regional Maritime Affairs and Fisheries Office

• 2004.02

  Samcheok Office, Donghae Regional Maritime Affairs and Fisheries Office

• 2008.02

  Samcheok Office, Donghae Regional Maritime Affairs and Port Office