Taiwan and South Korea are abandoning their traditional rivalry to become partners in AI chip manufacturing, driven by unprecedented global demand that neither country can satisfy alone. The shift is so significant that Nvidia CEO Jensen Huang left a handwritten message on an SK Hynix memory wafer in June urging increased production, signaling how critical this collaboration has become to scaling artificial intelligence infrastructure worldwide.

How Did Two Fierce Competitors Become Interdependent?

For decades, Taiwan and South Korea competed fiercely across consumer electronics, smartphones, displays, and memory chips. Companies like Acer, Asus, and HTC from Taiwan battled Samsung and LG from South Korea for market dominance. Until 2015, Samsung was even the exclusive manufacturer of processors for iPhones. But the explosive rise of artificial intelligence has fundamentally rewritten the rules of competition.

The reason is simple: neither country can handle the production volumes required to meet global AI demand on its own. Taiwanese and South Korean companies are racing to supply specialized chips called AI accelerators, which perform trillions of calculations to train generative AI models. The bottleneck is so severe that cooperation is no longer optional.

"We do not have time for this old-fashioned conflict. Demand is so great that we have to cooperate and, above all, ensure supply," said Sung Soo Eric Kim.

Sung Soo Eric Kim, Industry Expert

What Makes This Partnership Structurally Necessary?

Nvidia's AI server production chain demonstrates the interdependence with crystal clarity. Taiwan's TSMC manufactures the computing chips, while South Korea's SK Hynix or Samsung supplies the memory, and Taiwanese companies assemble the accelerators into server racks with sophisticated cooling systems. Each step depends on the other, creating a supply chain that cannot function without both nations.

The most critical component is High Bandwidth Memory, or HBM, which enables rapid data transfer and storage in AI chips. SK Hynix and Samsung together produce approximately 80 percent of the global supply of HBM. This memory is then integrated with TSMC chips in Taiwan using advanced packaging technologies that only Taiwanese manufacturers have perfected. The combination of Korean memory and Taiwanese processor manufacturing has become one of the key conditions for scaling AI infrastructure.

How Are Taiwan and South Korea Dividing AI Manufacturing Roles?

• Korean Memory Production: SK Hynix and Samsung together control about 80 percent of global High Bandwidth Memory supply, the specialized memory required for AI chips to function at scale.
• Taiwanese Chip Manufacturing: TSMC produces the advanced computing processors that power AI accelerators, leveraging decades of expertise in semiconductor fabrication.
• Taiwanese Advanced Packaging: Taiwanese companies integrate Korean memory with TSMC chips using sophisticated packaging technologies, then assemble complete server systems with cooling infrastructure.

This division of labor reflects each country's historical strengths. Taiwan developed an extensive network of highly specialized manufacturers, including power supply vendors, chip packaging companies, and cooling system developers. This ecosystem allows customers to flexibly build production chains with different partners. South Korea, by contrast, built vertically integrated conglomerates like Samsung that control multiple stages of production simultaneously.

What Does This Mean for Taiwan and South Korea's Economies?

The partnership is delivering tangible economic benefits. Taiwan ranked first in the world by its share of AI equipment manufacturing, according to an assessment by Jeong Woo Park of Nomura. AI exports supported Taiwan's economy so strongly that it grew by 8.7 percent last year, the highest rate in 15 years. Taiwan's statistical authorities forecast economic expansion of 11.05 percent in 2026, which would be the fastest growth rate in 39 years if accurate.

The economic shift is so pronounced that in 2025, Taiwan surpassed South Korea in GDP per capita for the first time in more than two decades. This reversal reflects how the AI boom has rewarded Taiwan's distributed manufacturing model and TSMC's foundational role in chip production.

"The two countries are now increasingly complementing each other," noted Jeong Woo Park, Nomura analyst.

Jeong Woo Park, Analyst at Nomura

The transformation from rivalry to partnership reveals a deeper truth about the AI era: the technology is so computationally demanding that it requires the best capabilities from multiple countries working in concert. Jensen Huang's handwritten plea for increased production was not merely a polite request; it was an acknowledgment that the future of artificial intelligence depends on Taiwan and South Korea setting aside decades of competition to become something neither could be alone.