Samsung Electronics and its largest union reached a tentative wage deal on Wednesday, hours before a planned 18-day strike was due to shut down production at the world's biggest memory chip maker.
Union leader Choi Seung-ho said members will vote on the agreement between May 22 and 27. The walkout, which would have involved more than 48,000 workers at Samsung's sprawling Pyeongtaek semiconductor complex south of Seoul, is on hold pending that ballot.
The dispute centred on bonuses. Samsung's semiconductor arm posted a 48-fold jump in profit in the March quarter, driven by surging demand for memory chips used in AI data centres. Workers wanted a share of those gains. The union demanded 15% of operating profit allocated to bonuses and the removal of an existing cap. Samsung offered 10% plus a one-time payment. The mediation proposal that both sides accepted sits somewhere between the two positions, though the full terms have not been disclosed.
Why the world was watching
Samsung controls roughly a third of the global DRAM market. DRAM chips are the memory that runs inside laptops, smartphones and, increasingly, AI server clusters. Supply is already tight. Industry estimates suggested an 18-day walkout could have cut global DRAM supply by 3% to 4% and NAND flash supply by 2% to 3%, pushing prices higher at a time when AI infrastructure demand is stretching capacity.
The ripple effects would have been immediate. Samsung executives told union leaders that customers including Nvidia had indicated they might temporarily stop accepting shipments during a strike because they could not guarantee product quality. Losing customer trust in semiconductor manufacturing takes years to rebuild.
Seoul was not willing to wait
The South Korean government escalated fast. The labour minister urged direct talks. Officials warned they could invoke emergency arbitration powers, a tool rarely used in the country's labour disputes. A senior government figure said the strike could cause up to 100 trillion won ($66 billion) in economic damage. The Bank of Korea estimated the hit at up to 0.5 percentage points of GDP growth.
A court in Suwon granted Samsung a partial injunction requiring the union to maintain minimum staffing levels to protect facilities and semiconductor wafers, even if the strike had gone ahead.
The bigger picture
The deal buys time but does not resolve the underlying tension. Samsung's workers watched rival SK Hynix accept union demands for compensation reform last year and saw more than 100 colleagues leave for competitors in recent months. The AI boom has made memory chip workers more valuable and more aware of it.
South Korea's semiconductor exports hit $78.5 billion in the first quarter of 2026, up 139% year on year. The workers who make those chips possible want a larger cut. The question is whether Samsung's management can absorb that cost without setting a precedent that spreads across the industry, which is exactly the concern the company voiced when it initially rejected the mediators' proposal.
