What overseas buyers should know about Chuseok, lingering supply-chain backlogs, and Hyundai Motor Group’s accelerating U.S. localization

Chuseok is approaching in South Korea.

Often described internationally as the Korean harvest festival or Korean Thanksgiving, Chuseok is one of Korea’s most important traditional holidays, together with Lunar New Year. Families travel across the country to gather with relatives, and many factories, warehouses, parts dealers, banks, logistics companies and other businesses reduce or suspend operations during the holiday period.

In 2026, the official Chuseok holiday runs from Thursday, September 24 through Saturday, September 26. Because September 27 is Sunday, many Korean businesses will effectively experience a four-day break from Thursday through Sunday.

For international buyers of Korean automotive parts, the timing is important.

In our previous market update, we expected September to become a gradual normalization period after an unusually difficult August. Summer shutdowns, Hyundai Motor strikes, supplier labor action and parts-logistics disruptions had already delayed a number of Hyundai and Kia genuine parts.

On paper, some of those risks have now eased. Hyundai Motor has completed its wage agreement, and a major Hyundai Glovis subcontractor labor dispute in Ulsan also moved toward settlement in early September.

However, from what we are seeing in actual sourcing activity at KIMCHA, the improvement is still not dramatic.

Some parts continue to arrive more slowly than expected, and the supply network has had limited time to clear the backlog accumulated during August. With Chuseok now arriving in the final week of September, it may be too optimistic to assume that Korean genuine-parts supply will fully normalize within this month.

To understand why, it is useful to look at several recent developments across Korea’s automotive supply chain.

1. Auto Parts and Logistics Workers Joined Coordinated Industrial Action in August

Korean Metal Workers’ Union Announces Joint Auto Industry Strike

Date: August 19, 2026

The Korean Metal Workers’ Union announced coordinated strikes across the automotive sector for August 20-21.

The action was not limited to Hyundai Motor’s assembly workers. Parts suppliers, Hyundai Motor Group affiliates, some Hyundai Mobis production operations and automotive logistics workers were also involved.

This was particularly important because Korean vehicle production relies heavily on just-in-time supply. Even relatively short stoppages in parts manufacturing or logistics can generate downstream backlogs that take longer to clear than the strike itself.

Source: Yonhap News Agency – Auto industry joint strike announcement

2. Hyundai Motor’s Main Labor Dispute Has Ended

Hyundai Motor Workers Approve 2026 Wage Agreement

Date: September 1, 2026

Hyundai Motor union members approved the company’s 2026 wage agreement, bringing 111 days of negotiations to an end.

The agreement followed repeated labor action, including Hyundai Motor’s first full-day strike in ten years. Industry estimates cited cumulative production losses of approximately 55,200 vehicles during the dispute.

This significantly reduces the risk of further Hyundai-led production stoppages in the immediate term. However, the end of a strike does not immediately eliminate the backlog created across production, suppliers, transportation and replenishment schedules.

Source: Yonhap News Agency – Hyundai Motor workers approve wage deal

3. A Key Hyundai Ulsan Logistics Dispute Also Moved Toward Settlement

Hyundai Glovis Ulsan Subcontractor Union Reaches Tentative Agreement

Date: September 2, 2026

A subcontractor union responsible for parts supply and logistics inside Hyundai Motor’s Ulsan manufacturing complex reached a tentative collective bargaining agreement in early September.

The approximately 1,400 workers involved perform important sequencing and parts-supply functions for Hyundai’s production lines. Because these operations feed components to assembly lines in real time, prolonged disruption could have affected vehicle production quickly.

The agreement therefore removed another major immediate supply-chain risk. Nevertheless, it came only weeks after widespread disruption, leaving relatively little normal operating time before Korea entered the Chuseok period.

Source: Bridge Economy – Hyundai Glovis subcontractor labor agreement

4. Hyundai Is Raising North American Local Parts Sourcing to 80%

Hyundai Motor Expands North American Localization Strategy

Date: August 26, 2026

At its 2026 CEO Investor Day, Hyundai Motor announced plans to significantly expand production capacity in North America.

More importantly for the parts industry, Hyundai raised its 2030 North American local parts sourcing target from 60% to 80%.

The company also plans substantial additional manufacturing capacity in North America. This is part of a broader strategy in which vehicle production, batteries, modules, logistics and major component sourcing are increasingly located close to the end market rather than relying exclusively on exports from Korea.

Source: Hyundai Motor Group – 2026 CEO Investor Day

5. Hyundai Mobis Is Also Strengthening U.S. Aftermarket Parts Infrastructure

Hyundai Mobis U.S. Redistribution Center Highlights Growing Local Supply Infrastructure

Date: September 21, 2026

A 459,680-square-foot Hyundai Mobis facility in Montgomery, Alabama, described as the company’s primary U.S. redistribution center for Hyundai, Kia and Genesis aftermarket service parts, was acquired by real-estate investment firm PRP for USD 66.5 million.

Hyundai Mobis remains the long-term tenant, and the transaction includes the possibility of expanding the facility.

The center receives parts from suppliers globally and distributes genuine Hyundai and Kia service parts across North America. Its scale illustrates that Hyundai Motor Group’s localization strategy is extending beyond vehicle assembly into parts production, warehousing and aftermarket distribution infrastructure.

Source: PRP Real Assets – Hyundai Mobis redistribution center transaction

What Can We Learn from These Developments?

The first conclusion is that labor risk and supply recovery are not the same thing.

Major labor disputes at Hyundai Motor and a key logistics operation have moved toward resolution. That is clearly positive for the supply chain.

But a settlement does not mean that every warehouse and dealer suddenly returns to full stock the next morning.

The sequence is more likely to look like this:

production disruption → delayed replenishment → accumulated backorders → resumed production → backlog processing → normal inventory levels

This process takes time.

August was already disrupted by Korea’s summer shutdown period and multiple labor actions. September then provided only a few weeks of normal operations before Chuseok begins on September 24.

For this reason, we currently view September as a transition month rather than a fully normalized month.

At KIMCHA, that is also what we are seeing in actual sourcing activity. Some products are arriving normally, while others remain slower than expected. The situation varies considerably by OE number, supplier and existing dealer inventory.

It would therefore be misleading to describe the Korean market as experiencing a universal Hyundai or Kia parts shortage.

But it would be equally misleading to tell overseas buyers that the supply situation has already returned completely to normal.

Chuseok May Delay the Final Stage of September Recovery

The timing of Chuseok is particularly important this year.

The official holiday lasts from September 24 to September 26, with Sunday September 27 following immediately afterward. Many Korean companies will therefore effectively stop or substantially reduce operations for four days.

The practical effect on automotive parts can begin even before the official holiday.

Parts suppliers need to complete production schedules, logistics companies face concentrated cargo movements, dealers adjust ordering schedules, and many employees take additional leave before or after major Korean holidays.

For an overseas importer waiting for a backordered part, losing several business days at the end of September can easily move the next meaningful update into October.

There is another calendar issue worth noting.

October also contains National Foundation Day, with a substitute holiday on October 5, followed by Hangeul Day on October 9. In other words, the first half of October will also include shortened working weeks.

Buyers should therefore be cautious about assuming that every September backlog will disappear immediately after Chuseok.

A Second, Longer-Term Change: More Parts Are Being Localized in North America

The current supply delays in Korea and Hyundai Motor Group’s U.S. localization strategy are different issues, and they should not be confused.

The current Korean supply situation is mainly a short-term operational issue involving labor disruption, summer shutdowns, inventory replenishment and holidays.

North American localization is a structural, long-term strategy.

Hyundai Motor Group already operates a substantial component ecosystem around its U.S. manufacturing facilities. Hyundai Mobis produces major modules and electrification components locally, while Korean suppliers in Georgia manufacture products ranging from body and interior components to electrical and power-electric systems.

Hyundai’s new target of sourcing 80% of North American components locally by 2030 suggests that this trend will continue.

However, overseas buyers should not interpret this as meaning that Hyundai and Kia genuine parts will stop being exported from Korea.

There are millions of service-part references across Hyundai and Kia’s global vehicle population. Many low-volume parts, legacy applications, electronics, precision components and service parts will continue to depend on international sourcing networks.

What is more likely is increasing regionalization.

Large-volume modules, battery-related systems, bulky components and parts closely linked to U.S. vehicle production have a strong economic reason to be produced locally.

Smaller, specialized or lower-volume parts may continue to move through Korea-centered global supply chains.

What Overseas Hyundai and Kia Parts Buyers Should Do

For overseas importers, distributors and repair-parts wholesalers, the current environment suggests a few practical adjustments:

• Place important Hyundai and Kia genuine-parts orders earlier than usual around major Korean holidays.
• Do not assume that a quoted ETA immediately before Chuseok will remain unchanged.
• For urgent items, confirm actual inventory rather than relying only on normal historical lead times.
• Maintain some safety stock for fast-moving genuine parts when local demand is predictable.
• Consider Korean OE/OEM alternatives when a genuine part is repeatedly backordered and an appropriate substitute exists.
• Separate urgent items from large consolidation orders when waiting for one delayed OE number would hold an entire shipment.
• For North American buyers, monitor whether specific product categories begin shifting toward U.S.-based supply as Hyundai increases local sourcing.
• Continue checking supply on an OE-number-by-OE-number basis. A general statement such as “MOBIS supply is normal” or “MOBIS supply is delayed” is increasingly insufficient.

There are good reasons to expect Korea’s automotive supply chain to improve compared with August.

Hyundai Motor’s main wage dispute has ended. A key Hyundai Glovis logistics labor dispute has moved toward settlement. The most acute risk of widespread production stoppages has therefore decreased.

But that does not mean overseas parts buyers should expect an immediate return to normal availability.

The August backlog still needs to move through the supply chain, and Chuseok will remove several working days at the end of September. Additional Korean public holidays in early October may also slow the final stage of normalization.

At the same time, a larger structural change is taking place. Hyundai Motor Group is steadily moving more vehicle production, major components and parts logistics closer to the North American market.

For overseas buyers, these two developments point in the same direction:

sourcing Hyundai and Kia parts increasingly requires more attention to timing, geography and actual inventory rather than relying only on historical lead times.

For the remainder of September and early October, buyers sourcing directly from Korea should allow additional time, confirm availability before making firm shipment plans, and remain flexible where alternative brands or partial shipments are possible.

The Korean genuine-parts supply chain is not closed, and this is not a universal shortage.

But for the moment, it is still too early to say that everything is fully back to normal.