South Korean memory chip maker Samsung Electronics is facing its worst-ever strike, with nearly 48,000 workers threatening to walk off production lines on Thursday for 18 days over a dispute about bonus payouts. Negotiations between Samsung Electronics’ labour union and management over wage increases and the removal of bonus caps collapsed on May 13, with the union saying it will proceed with its planned 18-day strike starting May 21, 2026.
The latest round of government-mediated talks, which began Monday, has centered on performance bonus calculations, bonus caps, and how the bonus pool should be divided across business units. As of Tuesday, the two sides remained deadlocked.
What the Union Is Demanding
The union has demanded the removal of a performance bonus cap currently set at 50 percent of annual salary and called for 15 percent of operating profit to be allocated as a bonus pool. It also wants that structure written into employment contracts permanently.
The union wants 15 percent of operating profit from the Device Solutions division, Samsung’s chip business, set aside as a bonus pool this year, with 70 percent distributed across the division as a whole and the remaining 30 percent allocated based on each business unit’s performance. The union says the formula would help narrow bonus gaps between profitable and loss-making units.
Market analysts project Samsung’s 2026 operating profit at roughly 300 trillion Korean won, which would translate to per-employee bonuses approaching 600 million won ($408,000) in the semiconductor division under the union’s formula.
Samsung’s Counteroffer
Management proposed a performance bonus equivalent to 12 percent of operating profit only for the Device Solutions division, limited to 2026, and attached a condition that the division must achieve the highest operating profit domestically this year. Samsung has offered a one-time payment for 2026 but refused to commit to permanent changes in how bonuses are calculated, according to union representative Choi Seung-ho.
Workers rejected a counteroffer of a $340,000 one-time bonus, demanding annual payouts along the lines of rival SK Hynix. SK Hynix eliminated its bonus cap in September 2025, and per-capita bonuses at SK Hynix are now projected to reach 700 million won in 2026 — more than double Samsung’s.
Choi Seung-ho, head of Samsung Electronics’ largest labour union, told reporters after Wednesday’s collapsed mediation session: “Because the differences between the labor union and management did not narrow, we requested mediation and waited for nearly 12 hours, but the proposal only worsened.” He added: “It is meaningless to wait any longer. We do not plan to hold an illegal strike. We will proceed in a legitimate way.”
Government Pressure and Legal Constraints
Seoul has moved on multiple fronts to prevent the strike. Prime Minister Kim Min-seok publicly threatened to invoke emergency arbitration — a legal mechanism used only four times since 1963 — if labor and management fail to reach a deal.
South Korean Industry Minister Kim Jung-kwan voiced concern Tuesday, telling lawmakers that workers’ calls for a greater share were understandable but that a Samsung Electronics strike would carry broader repercussions. “There is a strong sense of urgency that a strike must be avoided,” he said.
South Korean President Lee Jae-myung posted on X in Korean, saying “labor must be respected as much as business, and corporate management rights must be respected as much as labor rights.”
In parallel, the courts handed Samsung a partial legal win. The Suwon District Court barred the chip giant’s largest union and its leader, Choi Seung-ho, from occupying company facilities, installing locks, or obstructing workers from entering workplaces. The decision largely accepted management’s argument that disruptions to critical facilities could threaten safety and semiconductor production. Samsung separately notified the union of staffing levels needed to maintain safety and security operations at its semiconductor production lines during the strike, listing 7,087 essential workers.
The union said it respected the court’s decision but interpreted the ruling as requiring only minimal staffing levels similar to weekends and holidays. Samsung management disputed that interpretation, saying staffing for critical operations must remain equivalent to pre-strike weekday and weekend levels.
What a Strike Could Cost
South Korean Prime Minister Kim Min-seok estimated that direct losses from the strike could reach 1 trillion won ($664.7 million) per day. The union’s own projections are higher. The union’s estimate sits at up to 30 trillion won ($20.3 billion) in total damages.
A preview of that disruption came in April. A one-day strike in April offered a glimpse of what a full stoppage could look like: Samsung’s memory fab output fell 18 percent on the affected night shift, and its contract foundry output dropped 58 percent.
JPMorgan analysts warned that Samsung’s annual operating profit could fall by 7 percent to 12 percent if management accepts the union’s core demands. They estimate that allocating 10 to 15 percent of operating profit as performance bonuses and raising base salaries by 5 percent would generate 21 trillion to 39 trillion won ($14.3 billion to $26.5 billion) in additional labor costs above current projections.
Regional and Global Impact
Samsung Electronics accounts for 22.8 percent of South Korea’s exports and 26 percent of its total market capitalization. The company’s revenue accounts for 12.5 percent of South Korea’s GDP, according to Seoul’s presidential office.
Prolonged disruptions to semiconductor production lines could lead to structural damage for the company, including the possible loss of key clients such as Nvidia.
Major PC manufacturers including Lenovo, Dell, HP, Acer, and Asus have already warned of price increases of 15 to 20 percent in the second half of 2026, with Asus projecting increases of up to 30 percent on some laptop lines. Smartphone prices are projected to rise 13 percent by year-end compared with 2025 levels, according to Gartner.
DRAM contract prices surged 90 to 95 percent in Q1 2026 and Samsung’s entire 2026 production run is reportedly pre-contracted and sold out.
Background
The stakes have grown considerably since Samsung’s first-ever strike in 2024, when the union had about 32,000 members and only around 15 percent of them participated. Both sides held two rounds of mediation on May 11 and 12 under the Ministry of Employment and Labor. The final session lasted 17 hours — from 10 a.m. on May 12 to 3 a.m. the following day — but ultimately failed to reach an agreement. In 2024, Samsung paid zero performance bonuses after its chip division posted operating losses throughout the memory downturn. The AI-driven recovery produced a Q1 2026 operating profit increase of nearly eightfold to a record, yet workers again received no portion of that windfall under the existing system. Under South Korea’s labor laws, the labor minister may order emergency arbitration when industrial action is deemed likely to endanger public welfare or seriously harm the national economy. If invoked, all strike actions would be prohibited for 30 days. Emergency arbitration powers have been exercised only four times in South Korea’s history.
What Happens Next
Choi Seung-ho said some 41,000 unionised workers have expressed their intention to take part in the general strike, adding that the number could rise to more than 50,000. The strike is scheduled to run from May 21 through June 7. The government can invoke emergency arbitration only after the strike begins — meaning the initial hours of any walkout are unprotected. National Labour Relations Commission Chair Park Soo-geun said the two sides were “making concessions to each other” and that there was “some possibility of an agreement.” Choi has said the union would consider a new offer from Samsung if the company puts one forward, despite stating it does not plan to resume formal talks before the May 21 strike date.
