JPMorgan estimates a Samsung strike could cut operating profit by up to 31 trillion won, threatening AI chip supply to Nvidia and Tesla as 45,000 workers walk out May 21.
More than 45,000 Samsung Electronics workers are threatening an 18-day strike starting May 21, the largest in the conglomerate’s history. The dispute centers on how the AI boom’s spoils should be shared. Samsung’s memory chip division has reaped huge profits, while its logic chip and foundry businesses have posted billions in losses. The company proposed giving memory chip workers bonuses of up to 607% of annual salary – six times more than the 50% to 100% offered to logic chip employees.
Union leaders argue that logic chip workers, who make AI chips for Nvidia and Tesla, should not be left behind. “If the memory division gets 500 million won while the foundry division only gets 80 million won, what motivation would those employees have to keep working?” said union leader Choi Seung-ho during negotiations, according to transcripts reviewed by Reuters.
The gap has already triggered an exodus. A foundry engineer identified as Lee said his team has shrunk sharply as colleagues moved to Samsung’s memory division or to rival SK Hynix. Two other employees said many colleagues are currently applying for jobs at SK Hynix and other companies. Discontent grew last year after SK Hynix abolished its bonus cap for 10 years, resulting in bonuses more than three times higher than Samsung’s.
Samsung’s unusual goal is to become the world’s only semiconductor company offering a “one-stop” shop spanning memory, logic, and foundry services – unlike specialized competitors like Micron or TSMC. The internal friction between divisions threatens that strategy.
Samsung executive and negotiator Kim Hyung-ro defended the bonus disparity, saying the logic chip business “posted losses in the trillions of won and honestly, if it had not been for our company, they probably would have gone out of business or closed down.” He added that investments in the logic business are “funded with money earned from the memory business.”
The union demands include abolishing a bonus cap of 50% of annual salaries and allocating 15% of annual operating profit to a bonus pool distributed to all workers. Samsung negotiators say performance bonuses should be merit-based.
Namuh Rhee, a Yonsei University professor and chairman of a Korean corporate governance group, said the issues are “partly self-inflicted by the company.” He argued that Samsung’s move to put different businesses together created a complex structure that results in a valuation discount while causing conflicts of interest. “Samsung must enable foundries to become self-reliant,” he said.
Samsung Chairman Jay Y. Lee has said he wants to be the “clear No. 1” in the logic chip market by 2030. The strike and internal departures put that ambition at risk.
The strike is set to begin May 21 and last 18 days. JPMorgan estimates it could impact Samsung’s operating profit by 21 trillion won to 31 trillion won ($14.08 billion to $20.79 billion), with sales losses of about 4.5 trillion won. The strike would reduce production of memory chips crucial for AI data centers, smartphones, and laptops.
Samsung’s top leadership, the South Korean government, and foreign investors have voiced concerns. In an internal memo, Samsung’s board chairman warned of capital outflows, a drop in tax revenue, and a weakening of the won. The American Chamber of Commerce in Korea said the labor uncertainty could affect confidence in Korea’s reputation as a dependable manufacturing partner.
Samsung said in a statement that should the strike go ahead, a failure to deliver to customers would result in “a complete loss of trust.” The company also said it will offer employees “the best compensation in the industry” with its latest proposal.
The primary assets at risk are Samsung’s memory chips (DRAM and NAND) used in AI data centers, and logic chips (including base dies) used in AI accelerators for Nvidia and Tesla. A prolonged strike could disrupt supply chains for these companies, potentially pushing them to alternative suppliers like SK Hynix or Micron.
Nvidia (NVDA), a key customer of Samsung’s logic chips, saw its stock fall 4.42% today to $225.32, according to AlphaScala data. The company’s Alpha Score stands at 68/100 (Moderate), reflecting market jitters over supply chain risk. For a full profile, visit the NVDA stock page and NVIDIA profile.
Other affected sectors include smartphone and laptop manufacturers that rely on Samsung’s memory chips. Apple (AAPL) and other OEMs could face component shortages if the strike proceeds. The broader stock market analysis shows semiconductor stocks under pressure today.
A compromise on bonus payouts before May 21 would de-escalate the situation. If Samsung offers a more equitable bonus structure – perhaps a smaller gap between memory and logic divisions – the union may call off the strike. The union’s demand for a 15% operating profit pool could be a starting point for negotiation.
Alternatively, if the South Korean government mediates a deal, as it has in past labor disputes, the strike could be averted. The government has already signaled concern, with President Lee Jae Myung saying some unions were making excessive demands in remarks widely seen as aimed at Samsung’s unions.
If the strike proceeds, the 18-day walkout could extend if no agreement is reached. A prolonged strike would deepen the production cuts, potentially causing customers to shift orders permanently to competitors. Samsung’s “one-stop” strategy would suffer a severe blow if the logic chip division loses talent and trust.
A precedent of union demands being pushed through by strike could embolden labor actions across South Korea’s tech sector, as noted by Korea University law professor Park Ji-soon. “If Samsung sets a precedent in which union demands are pushed through by means of a strike, companies could find themselves in a very unfavorable bargaining position in the future,” he said. That would raise the risk premium for investing in Korean semiconductor stocks.
For traders, the key markers are May 21 (strike start) and any announcements of compromise. If Samsung’s memory chip production is disrupted, Nvidia and Tesla supply chains will be the first to feel the pinch. Monitor SK Hynix and Micron as potential beneficiaries.
Prepared with AlphaScala research tooling and grounded in primary market data: live prices, fundamentals, SEC filings, hedge-fund holdings, and insider activity. Each story is checked against AlphaScala publishing rules before release. Educational coverage, not personalized advice.