Samsung 2026 Labor Strike Supplier Impact Report

What’s Happening Right Now

For much of the past two weeks, Samsung’s labor union was preparing to go on an 18-day strike that was set to begin on Thursday, May 21. On that day, around 47,000 Samsung workers were set to walk off the job—a figure that would have represented around 40% of Samsung’s entire South Korean workforce.

The projections for how the strike was going to impact the memory chip manufacturer were quite dire. Conservative estimates suggested that the company could have lost hundreds of millions of dollars for every day the strike went on. JPMorgan suggested an even more disastrous outcome: total losses running somewhere between $14 and $20 billion in operating profits.

Samsung Averts Strike at 11th Hour

In a sudden 11th hour development, however, Samsung management and its labor union announced on Wednesday afternoon EST that they had reached a tentative agreement. As a result—for now, at least—the strike has been suspended. The Samsung Electronics’ union and the company’s leadership are set to vote on a new pay deal sometime between May 22 and 27.

Prior to the tentative agreement, talks between the two sides had broken down several times in recent days, including a final impasse on Wednesday that indicated that the strike was very likely to move forward. Negotiations were only resumed after South Korean Labour Minister Kim Young-hoon stepped in to serve as a mediator between the two sides.

Had the Samsung strike actually taken place on May 21, it would have been the largest labor-related work stoppage in the history of the semiconductor industry, and one likely to have triggered major manufacturing disruptions across a myriad of other suppliers and sectors.

Projecting the Supply Chain Impact of the Strike

Although the strike has been averted for now, Z2 wanted to assess what the impact would have looked like across the semiconductor supply chain. To that end, we carried out an analysis that included:

• Samsung parts most vulnerable to a labor strike
• Global suppliers who would have been most impacted by the Samsung strike
• The top commodities those suppliers source from Samsung
• Samsung fabs, IC assembly sites, and other manufacturing facilities most vulnerable to the strike.

While supply chains appear safe at the moment, this information can still serve as a valuable starting point for original equipment manufacturers (OEMs) looking to determine their dependencies and potential chokepoints, and contextualize the upstream role Samsung plays in the larger chip manufacturing ecosystem.

Samsung Parts Vulnerable to a Labor Strike

The vast majority of Samsung’s semiconductor manufacturing infrastructure is based in South Korea, including sites that play a role in the fabrication, packaging, and/or testing of DRAM, FPGAs, microprocessors, and MOSFETs.

Which Major Suppliers Could Be Affected by the Strike?

If the strike did take place in South Korea on May 21, it could have quickly reverberated across the semiconductor manufacturing landscape. While the majority of Samsung’s South Korean facilities manufacture Samsung parts—including highly coveted DRAM—the sites are also used by other suppliers to produce their own ICs, passive components, and other products.

An analysis conducted by Z2 suggests that these 9 manufacturers would likely be among the companies most affected by a large-scale labor disruption:

1. Cal-Chip Electronics
2. Xilinx, Inc.
3. NXP Semiconductors
4. Cavium, Inc.
5. Lattice Semiconductor Corporation
6. Infineon Technologies AG
7. Texas Instruments Incorporated
8. Marvell Technology Inc.
9. Advanced Micro Devices, Inc.

Z2Data’s Recommendations for Original Equipment Manufacturers (OEMs)

As of Wednesday, May 20, the Samsung strike has been successfully averted. But for OEMs and other importers that source from Samsung factories in South Korea, this event could have triggered major disruptions.

To avoid exposures to future labor events—and a potential Samsung strike, should the tentative agreement fall through—Z2 recommends taking the following measures:

Map Your Samsung Dependencies

Episodes like this one underscore the vital importance of supply chain mapping. Companies that have mapped some or most of their supply chains are able to swiftly identify all the parts they’re currently sourcing from Samsung facilities in South Korea. This type of visibility and transparency can give these businesses a precise window into their specific dependencies, informing strategies for mitigating the fallout from a potential strike.

Secure Alternative Sourcing

If the 47,000 Samsung workers ended up going on strike on May 21, it could have been catastrophic for the global semiconductor supply chain. Organizations that have alternative suppliers they can rely on if Samsung production lines freeze will be in a much stronger position to keep revenue losses and other consequences to a minimum.

Don’t Overreact

It’s important to remember that, while the stakes can be very high with impending supply chain disruptions, overcorrections can be just as costly as no responses at all. Whenever possible, OEMs should take decisive, targeted action—rather than impulsive, ill-informed measures stemming from desperation.

‍Want to See a Map of Your Suppliers?

If you’re interested in gaining comprehensive visibility into your company’s supply chain risk at the part level, Z2’s part-to-site mapping can be a vital resource. Z2 provides a granular view of where your parts are manufactured, including supplier, site, city, state, country, and address, along with risk assessments of both their manufacturers and specific sites.

Contact us for a free trial demonstrating these capabilities.