Chonghaejin Marine
A South Korean passenger and freight shipping company best known as the operator of the ferry MV Sewol, which sank in 2014.
Last updated August 24, 2026
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Overview
Chonghaejin Marine was a South Korean shipping company established on 24 February 1999. It operated domestic passenger and cargo services, including ferry routes connecting mainland South Korea with offshore islands. Its business included the transport of passengers, vehicles and freight on vessels serving coastal routes, with the Incheon–Jeju service becoming its best-known operation. The company was formed in the aftermath of the collapse of businessman Yoo Byung-eun’s Semo group and became an important vehicle for consolidating shipping assets associated with Semo Marine. Chonghaejin Marine acquired ships and other operating assets from that business. Ownership and control were linked to Yoo Byung-eun’s family through I-One-I Holdings and a network of affiliated, largely unlisted companies. The company’s ownership structure later became a major subject of public and regulatory scrutiny. Chonghaejin Marine’s best-known vessel was MV Sewol, a passenger ferry operating between Incheon and Jeju. On 16 April 2014, Sewol capsized and sank in the Maenggol Channel while carrying 476 people, including a large group of students from Danwon High School. Only 172 passengers and crew survived; 304 people died or remained missing. The disaster prompted extensive investigations into vessel modifications, cargo loading, stability, emergency procedures, crew conduct, regulatory oversight and the company’s response during the sinking. It also became one of the defining maritime and public-safety tragedies in modern South Korea. Following the disaster, the Ministry of Oceans and Fisheries cancelled Chonghaejin Marine’s authorization to operate ferries on the Incheon–Jeju route in May 2014. The company filed for bankruptcy protection in June 2014, and its operations were effectively ended. A related company, Chonhaiji, which held a major stake in Chonghaejin Marine, also sought receivership in June 2014 while reporting substantial debt to the Korea Development Bank. The wider corporate network connected to Yoo Byung-eun was investigated during the ensuing search for accountability. Yoo’s body was found in June 2014, although authorities ruled out foul play and did not establish a definitive cause of death. Chonghaejin Marine was officially dissolved on 9 May 2016. It is therefore a defunct company whose historical identity is inseparable from the Sewol disaster, the subsequent criminal and regulatory proceedings, and debates about safety governance in South Korea’s ferry industry.
History
Chonghaejin Marine was established in South Korea on 24 February 1999 as a passenger and freight shipping company. Its business centered on domestic coastal ferry services, linking the mainland with island destinations and transporting passengers, vehicles and cargo. The company became part of the corporate structure associated with businessman Yoo Byung-eun after the collapse of his Semo group. It consolidated ships and other assets connected with Semo Marine, while Semo’s debts were reportedly written off during the restructuring. Control of Chonghaejin Marine was linked to Yoo Byung-eun’s two sons through I-One-I Holdings and a network of affiliated unlisted companies. This ownership arrangement later attracted substantial attention because of the relationship between the company, related businesses and the Yoo family. Chonghaejin Marine operated several vessels on domestic routes, including the Incheon–Jeju service. Its most prominent vessel was MV Sewol, a large ferry capable of carrying passengers, vehicles and freight. On 16 April 2014, Sewol sank while sailing from Incheon toward Jeju. The vessel capsized in the Maenggol Channel with 476 people aboard. A large number of those aboard were students from Danwon High School travelling on a school trip. There were 172 survivors, while 304 people died or remained missing. Investigations and public criticism focused on the ferry’s condition and modifications, cargo loading, stability, operating practices, emergency response, crew actions and the broader regulatory system governing passenger ferries. The disaster produced extensive legal, political and social consequences in South Korea. In May 2014, the Ministry of Oceans and Fisheries cancelled Chonghaejin Marine’s license to operate the Incheon–Jeju ferry route. The company filed for bankruptcy in June of the same year, and its commercial operations did not continue. A related ship-block manufacturer, Chonhaiji, which held 39.4 percent of Chonghaejin Marine according to the referenced account, also applied for receivership in June 2014. The company was associated with significant debt to the Korea Development Bank, adding to the financial pressure on the wider corporate network. The post-disaster investigations also included a search for Yoo Byung-eun. A body found in a field in June 2014 was later identified through forensic testing as Yoo’s. Authorities ruled out foul play but did not establish the cause of death. Chonghaejin Marine’s business and ownership connections remained part of the wider public examination of the Sewol disaster. Chonghaejin Marine was officially dissolved on 9 May 2016. Its historical significance is consequently tied less to a continuing consumer brand than to its role as the operator of MV Sewol and to the regulatory, financial and accountability issues exposed by the ferry’s sinking.
- 2016
Company dissolved
[1]Chonghaejin Marine was officially dissolved on 9 May 2016.
- 2014
MV Sewol disaster
[1]MV Sewol sank on 16 April 2014 while travelling from Incheon to Jeju, leaving 304 people dead or missing.
- 2014
Ferry license cancelled
[1]The Ministry of Oceans and Fisheries cancelled the company’s authorization to operate the Incheon–Jeju ferry route.
- 2014
Bankruptcy filing
[1]Chonghaejin Marine filed for bankruptcy in June 2014.
- 2003
Chonghaejin Express Ferry No. 1 collision
[1]Chonghaejin Express Ferry No. 1 was involved in an accidental collision with an oil tanker.
- 1999
Company established
[1]Chonghaejin Marine was established on 24 February 1999 as a South Korean passenger and freight shipping company.
Products and positioning
A domestic coastal shipping operator serving passenger, vehicle and freight transportation between mainland South Korea and island destinations.
Passenger and vehicle ferry
MV Sewol
MV Sewol was Chonghaejin Marine’s best-known vessel and operated on the Incheon–Jeju route. It carried passengers, vehicles and freight. The ferry sank in the Maenggol Channel on 16 April 2014 while carrying 476 people, resulting in 304 deaths or unresolved disappearances and triggering extensive scrutiny of ferry safety and company practices.
Passenger ferry
Chonghaejin Express Ferry No. 1
Chonghaejin Express Ferry No. 1 was one of the company’s passenger vessels. It was involved in an accidental collision with an oil tanker in 2003, an incident recorded in accounts of the company’s fleet history.
Passenger and vehicle ferry
Ohamana
Ohamana was a ferry operated by Chonghaejin Marine. It was retired after the sinking of its sister ship, MV Sewol, although the available reference material does not provide a detailed account of its route or technical specifications.
Controversies
2014
MV Sewol sinking
The sinking of MV Sewol on 16 April 2014 caused 304 deaths or unresolved disappearances. The disaster led to intense criticism of Chonghaejin Marine’s operating practices, safety procedures, cargo management, emergency response and corporate accountability.
2014
Corporate ownership and accountability investigations
After the disaster, investigators and the public examined Chonghaejin Marine’s links to Yoo Byung-eun, his family and a network of affiliated companies. The ownership structure and related businesses became part of the wider accountability controversy surrounding the Sewol tragedy.
Brand decisions
2014
Ferry operating authorization withdrawnOtherBackground
The decision followed the sinking of MV Sewol and the ensuing regulatory and public scrutiny of Chonghaejin Marine’s ferry operations.
Action taken
The Ministry of Oceans and Fisheries cancelled the company’s license to operate ferries on the Incheon–Jeju route in May 2014.
Aftermath
The company lost its principal ferry authorization, subsequently entered bankruptcy proceedings and was later dissolved.
2014
Bankruptcy filingOtherBackground
Following the Sewol disaster and cancellation of its ferry license, Chonghaejin Marine could no longer continue its core operating business.
Action taken
The company filed for bankruptcy in June 2014.
Aftermath
Its operations ended and the company was officially dissolved in May 2016.
Recent events
- 2016
Chonghaejin Marine officially dissolved[1]
Bankruptcy · Other
The company was formally dissolved on 9 May 2016 after its bankruptcy and the termination of its ferry operations.
- 2014
Related shareholder Chonhaiji seeks receivership[1]
Bankruptcy · Other
Chonhaiji, a ship-block manufacturer linked to Yoo Byung-eun’s family and a major shareholder of Chonghaejin Marine, applied for receivership amid reported debt obligations to the Korea Development Bank.
Sources1 sources
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