The industrial action has been called over wages and benefits, putting some production in doubt for the first time since the 1990s.
About 97% of 10,000 workers voted to strike as early as next month, AFP reported.
“Despite the vote result, union leaders will try to seek a negotiated wage deal with the management this week. But if the company doesn’t accept our demand, we have no other choice but to go on strike,” union spokesman Kim Hyeong-gyun said, according to the Wall Street Journal.
HHI