Renault Samsung Motors Corp.'s union on Tuesday suspended partial strikes to resume negotiations with the company over wages for the year of 2019.

Renault Samsung workers have staged partial strikes at its sole plant in Busan, 453 kilometers south of Seoul, for higher wages in the past 19 days. It caused production losses of about 10,400 vehicles worth about 200 billion won ($173 million), according to the automaker.

To avoid further losses resulting from walkouts, the company has partially shut down the plant for the nighttime shift since Jan. 10.

"The company will maintain the partial shutdown, while having negotiations with the union for a deal. The company and the union have not arranged a meeting yet," a company spokesman said over the phone.

The plant remained open during the day as 70 percent of 1,700 union workers were not participating in the walkouts, he said.   

It is the second time for the company to partially shut down the plant after it took a similar step for one day during wage negotiations with the labor union in May 2018.

The union was not immediately available for comment.

Early last month, the union voted to stage a strike in protest against the company's wage freeze proposal for the year of 2019.

The company also offered a voluntary retirement program, the first since 2012, to its 1,800 employees in September, but only a few dozen workers applied for the program.

In June last year, the union sealed a wage deal with the management for the year of 2018 after staging 62 rounds of strikes that resulted in output losses of 14,300 vehicles.

The company has said it will be difficult to maintain the current workforce as the output volume of Nissan Motor Co.'s Rogue SUV is expected to fall sharply this year from last year's 60,000 units.

Renault Samsung had produced about 100,000 Rogues at the Busan plant to be exported due to a manufacturing contract with Nissan.

But Nissan cut its output allocation to the plant to 60,000 last year, citing output losses caused by labor strikes.

To offset the reduction in the Rogue production, Renault Samsung badly needs to secure export volume for the XM3 compact SUV, but the company is still in talks with its parent company Renault, and no decision has been made yet.

For the whole of 2019, Renault Samsung's sales plunged 34 percent to 90,591 vehicles from 137,208 units a year earlier.

The company's current lineup includes the SM3 compact, the all-electric SM3 Z.E. sedan, the QM3 small SUV, and the SM5, SM6 and SM7 sedans. 

Renault S.A. has an 80 percent stake in Renault Samsung. (Yonhap)