Shipbuilder Samkang M&T of Korea is the preferred bidder for STX's Goseong Offshore & Shipbuilding.
It has joined forces with asset manager UAMCO for the takeover, according to the Asiasis website.
Samil PricewaterhouseCoopers, which manages Goseong, made the announcement on Wednesday.
The new owners plan to stabilise Goseong, a block builder.
Samkang wants to make the yard a shiprepair plant for large vessels.
In February, Goseong went back up for sale.
It was reportedly offered by Seoul central district court for less than KRW 100bn ($87m).
Owner STX Offshore & Shipbuilding filed for court protection last year despite more than $3bn in financial aid from creditors.