The Korean Metal Workers Union, which represents all hourly workers at Hyundai, Kia and GM Korea, is making financial demands on Korea’s remarkably successful automotive industry that may see one of them struggling to survive.

This is certainly the case at GM Korea, where unionists have returned to the bargaining table after a 7-week pause in negotiations that followed three weeks of partial strikes.

The union at this embattled company, whose sales totals already are being crushed by Hyundai and Kia, is asking for the same wage increase the KMWU hopes to exact from Hyundai and Kia. If successful, analysts believe, it will push GM’s strategic planners to look for ways to cut the money-losing, strike-prone subsidiary loose from the parent company’s portfolio.

The standard monthly wage increase being sought for workers at GM Korea, Hyundai and Kia is 154,883 won ($142). The average wage for workers at GM Korea, based on 2016 financial statements, is 87 million won ($79,700) per year. By comparison, Hyundai workers’ average annual wages are 94 million won ($86,100). Kia workers’ wages are comparable.

At Hyundai and Kia the union also seeks bonuses based on 30% of each company’s 2016 net income. At GM Korea the union seeks a flat five months’ pay as a bonus.

Wage negotiations began May 23 at GM Korea, and the 20th round of negotiations was held Dec. 6, the same day the new round of partial strikes began.

The company’s new CEO, Kaher Kazem, a native Australian who presided over GM’s pullout from the India domestic market, attended the session. Kazem assumed his position Sept. 1 and the union went on strike within days.

Despite its travails, a GM Korea spokesman tells WardsAuto, “The company will continue making an effort to peacefully complete the current negotiations and build amicable labor relations.”

In a separate statement, the company says: “We do not publicly disclose detail numbers for the wage increase (sought by the KMWU), but we can say that labor costs increased more than 50% from 2012 to 2015, and it is known that additional labor costs have been very significant to (the financial condition of) GM Korea.”

The Hyundai Branch of the KMWU is even more volatile. It is currently holding partial strikes of three to four hours per shift at all seven of the automaker’s domestic plants. It is the second consecutive week in an ongoing series of partial strikes. The strikes began Dec. 5, the same day the two sides held their 36th round of negotiations.

A union spokesman says Hyundai management is arrogant and insincere and the union sees no hope in resolving wage negotiation differences by year-end, thus was forced to take strike action.

Analysts estimate the value of lost production as of Dec. 8 for all 13 days of partial strikes held this year totals more than 1 trillion won ($919 million).