Samsung’s tense standoff with its workers has just entered a new, risky phase. Last-minute talks between Samsung Electronics’ management and its main labor union have collapsed without a deal on performance bonuses, clearing the way for a planned, multi-week strike that could hit the world’s largest memory-chip maker right when demand from artificial intelligence is exploding.

At the heart of the dispute is how Samsung shares its booming chip profits with the people who actually run its fabs. The union is pushing for a far more generous, transparent system: it wants 15% of Samsung Electronics’ annual operating profit set aside for employee bonuses, with no upper cap, and for that rule to be written into company policy rather than negotiated year by year. It also wants the existing bonus ceiling of 50% of annual salary scrapped and has been seeking base-salary hikes on top of that. Management, on the other hand, has argued that locking in such a rich formula would strain Samsung’s finances in lean years and make it harder to invest aggressively in new technologies.

Those differences proved too big to bridge in eleventh-hour negotiations. In a statement, Samsung said it could not accept demands that would guarantee bonuses even for business units running at a loss, signaling concerns about tying payouts too tightly to overall group profit. The union responded by confirming it will proceed with an 18-day strike from May 21 to June 7, a period long enough to unsettle global chip buyers even if actual production lines keep running at partial capacity. Shares of Samsung fell around 3% in Seoul after news of the breakdown, reflecting investor anxiety over potential disruption and the prospect of higher long-term labor costs.

South Korea’s government is not just watching from the sidelines. Officials have already warned they are prepared to use emergency mediation powers, a legal tool that can delay or restrict strikes deemed likely to seriously harm the national economy. A local court has also stepped in with a partial injunction, ordering the union to maintain normal operations at certain critical facilities even if the strike goes ahead. That means this will not be a full, lights-out shutdown of Samsung’s chip plants, but the mere threat of disruption at such a pivotal supplier is enough to rattle a supply chain still recovering from years of shortages.

For Samsung’s workers, this confrontation has been building for a while. The company has a long history of resisting organized labor, and large-scale strikes have been rare, but unionization has grown rapidly in recent years as employees demand a clearer share of the spoils from the AI and data-center boom. Rival SK Hynix has become an important reference point: it has benefited massively from high-bandwidth memory used in AI servers and has moved to ease or remove some bonus caps, feeding the perception among Samsung staff that they are getting a smaller slice of a similarly lucrative pie. In that context, the 15% profit-share demand is as much about symbolism and long-term fairness as it is about one year’s payout.

The union’s leverage comes from timing as well as numbers. It represents tens of thousands of workers across Samsung’s operations, and previous, shorter actions in past years showed that even limited disruptions can complicate logistics and planning for customers. This time, the strike window overlaps with intense global demand for DRAM and NAND memory chips, which are essential for everything from AI accelerators and cloud servers to smartphones and laptops. Analysts and industry commentators have warned that a prolonged strike could cost Samsung trillions of won in lost output and, in a worst-case scenario, tighten supply enough to push memory prices higher worldwide.

Yet there is still a lot of uncertainty about how hard the strike will actually bite. Emergency mediation, if activated, could delay the walkout or limit the forms of industrial action workers are allowed to take, such as banning stoppages at specific fabs or critical production lines. Even without government intervention, some employees may be reluctant to fully down tools if they fear backlash or worry that Samsung will find ways to maintain output with non-union staff, automation, or overtime in other plants. The union, for its part, needs the strike to be visible and painful enough to force concessions without damaging Samsung’s competitive position so badly that it threatens jobs in the longer run.

The broader stakes go beyond one company’s bonus formula. Samsung is South Korea’s biggest private employer and a central pillar of its economy, so a drawn-out labor conflict raises questions about social stability and the country’s ability to navigate the transition to an AI-heavy, highly automated industrial base. If the union succeeds in institutionalizing a generous, profit-linked bonus scheme, it could set a new benchmark for compensation in the tech and manufacturing sectors, forcing other giants to respond. If it fails, that may signal that even in an era of record semiconductor profits, labor’s bargaining power remains limited in face of global competition and fears of losing ground to rivals.

For now, both sides insist they are still open to dialogue, even as they brace for a strike that neither can fully control. Samsung has publicly repeated that “there should be no strike under any circumstances,” while saying it remains willing to talk. Union leaders say they are ready to walk out unless management comes back with a fundamentally different offer on bonuses and salary policy, not just temporary sweeteners. The next few days will show whether political pressure, market reaction, and the threat of disrupted chip supplies are enough to push both sides back to the table before the first workers clock out in protest.