The union has been demanding that Hyundai Heavy raise the basic monthly wage by 123,000 won ($103), among other proposals. The unionized workers have also launched partial strikes to make their demands heard.
"The management has yet to come up with its wage proposals for this year's collective bargaining," a Hyundai Heavy union spokesperson said. "The company is saying that it will roll out its wage proposals if the union accepts its merger with Daewoo Shipbuilding & Marine Engineering Co."
The union, which has 10,000 members, has been opposing Hyundai Heavy's plan to merge with Daewoo Shipbuilding, claiming that it risks workers' job security.
The lengthy wage dispute came amid the shipyard's struggle to win more orders.
In the first eight months of the year, Hyundai Heavy secured orders for 17 vessels worth a total of $2.17 billion, or only 27.1 percent of its annual target of $8 billion, industry data showed.
Meanwhile, Hyundai Heavy's smaller affiliates are also struggling to ink wage deals with labor unions.
Unionized workers at Hyundai Mipo Dockyard Co. said they will stage a strike Friday since there has been no major progress in 23 rounds of wage negotiations.
And Hyundai Samho Heavy Industries Co. suffered four hours of production disruption Wednesday when workers went on strike over their wage deal. (Yonhap)