It has emerged that the operator of the 6,586-gt ferry Sewol (built 1994) made significant increases to accommodation and cargo capacity after it bought the ferry in 2012 and that were only approved by class on the basis of detailed loading and ballast-water conditions.

The vessel was bought from Japanese ferry operator Hayashikane in 2012 and, as is common with secondhand ferries in South Korea and other Asian countries, went for conversion to boost capacity.

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