SEOUL -- Unionized workers at South Korea's GM Daewoo Automotive Technology Co., who have been involved in full or partial strike action for six days, rejected on Tuesday a preliminary deal offering an 11 percent wage increase.
Out of nearly 8,000 union members, about 55 percent voted against a preliminary wage deal that union leaders agreed with the management on July 22, a union spokesman said.
"We will convene a meeting to discuss whether to renegotiate with management or take other action," said the spokesman, who declined to be named.
GM Daewoo spokesman Kim Sang-won said: "The management is ready to go back to the bargaining table for more talks."
The six-days of labor unrest, which included a full strike on July 21 and partial strikes, had cost the carmaker 3,500 vehicles in lost production, Kim said.
GM Daewoo's union has demanded a pay rise of nearly 17 percent.
Members of GM Daewoo's union also include workers at the Pupyong plant, the former Daewoo Motor's oldest and biggest plant that was left out of a deal between General Motors and creditors.
GM, the world's largest automaker, and its partners took a majority stake in some of the assets of Daewoo Motor in 2002, creating unlisted GM Daewoo.
South Korea traditionally faces a seasonal rise in union action every summer, but labor unrest this year poses a big headache for a government struggling to bolster sluggish local demand and business spending.