The largest labor union, the National Samsung Electronics Union (NSEU), with 28,000 members, announced a three-day strike starting next Monday.

This number represents about 22 percent of Samsung Electronics' total workforce of 125,000, Yonhap news agency reported.

The actual number of union workers participating in the strike remains uncertain, and the possibility of major production disruptions may be low.

NSEU President Son Woo-mok said, "We will fight with a full strike without pay and without work until our demands are met."

Since January, the two sides have held several rounds of talks but have been unable to narrow their differences over salary increase rates, leave systems and bonuses.

The union is demanding a day off for all employees and a significant wage increase for the 855 members who have not signed the 2024 wage negotiation agreement.

Additionally, the union demanded the company provide more paid leave and compensate for economic losses incurred during unpaid strikes.

In June, unionized employees of Samsung Electronics went on a one-day strike, the first labor walkout at the company.