Four Countries, One Passport — The Week the Chip Supply Chain Became a Chairman's Calendar

On June 3, SK Group Chairman Chey Tae-won landed in Taipei. By the end of the next 48 hours he had sat across from Foxconn's Young Liu and TSMC's C.C. Wei. Weeks earlier, the same itinerary had taken him through Jensen Huang's Santa Clara office. That sequence — Nvidia in California, Foxconn in Taipei, TSMC in Hsinchu, all booked on the same chairman's calendar — is the cleanest single artifact of what changed in the semiconductor industry this week. The four-country AI chip supply chain is no longer being run through procurement contracts. It is being negotiated by people who fly with their own security detail.

This isn't ceremony. The agenda items between Chey and Wei included custom HBM allocations and the one-stop Nvidia–SK Hynix–TSMC packaging flow that Korean media reported in detail the same morning Chey's plane landed. Foxconn's Liu, who in the same week announced a strategic AI rack pact with Intel covering Xeon-based servers and edge AI, is now positioning Hon Hai as the assembler of choice for the systems SK Hynix's HBM stacks will ultimately end up inside. The four arrows used to point one direction — US designs, Korea makes memory, Taiwan makes logic, Japan makes equipment. This week they pointed at each other.

The clearest macro evidence sits in Korea's customs data. April semiconductor exports hit $25.2 billion, up 158.18% year-over-year — a third straight month of triple-digit growth following February's $19.4B (+139.75%) and March's $24.9B (+138.21%). Goldman Sachs responded by lifting its KOSPI target to 12,000, and the OECD on June 4 raised Korea's 2026 GDP growth forecast to 2.6% from 1.7%, citing chip demand. The reason Chey can sit across from Wei as a peer — not a buyer waiting on capacity — is sitting in that customs print. K-memory is the variable that lets every other player in the four-country chain hit their numbers, and the DDR5 16Gb spot holding at $43.23 is the same orderbook's echo.

Taiwan registered the corollary in real time. Phison's May revenue came in at NT$22.83 billion, up 301% year-over-year. TSMC's annual general meeting on the same day featured Chairman C.C. Wei telling shareholders to "keep buying" and explicitly extending growth visibility through 2030, with the employee bonus pool poised to rise more than 30%. FactSet's analyst panel lifted MediaTek's price target 3.5% to NT$4,100 and pushed Nanya Tech's 2026 EPS consensus to NT$46.04. None of these are independent prints. They are all downstream readings of the same Nvidia order book that Chey traveled to Hsinchu to discuss.

Japan completed the loop. The Nikkei hit a record 68,400-plus, with Tokyo Electron and Advantest alone contributing more than a thousand index points. Toyota briefly slipped to third place in the Japan market-cap ranking — a passing footnote in market plumbing, a permanent one in cultural memory. METI used the week to release a Japan semiconductor revival blueprint built explicitly around winning globally in equipment and materials, not finished chips. And TSMC, at its AGM, took the unusual step of publicly reaffirming continued Tokyo Electron purchases despite Korea's parallel push to localize ultrapure water and cut EUV delivery times from 34 days to 9. Wei was speaking past his AGM audience to METI: Japan equipment dependence is not going away.