Your Tier-A South Korea ↔ Japan corridor, in one brief
The Naka is the monthly read for OTC cosmetics manufacturers who source, manufacture, or private-label across the AU–JP/KR corridor. Built for the operator who needs signal, not coverage.
Single-source disruption in Tier-A Japanese contract manufacturers is now the dominant supply-chain risk for OTC launches. A 2024 recall at a Kanagawa OEM reshuffled 18 months of buyer forecasts for two US indie brands — both were single-source on the same line.
Regulatory drift between PMDA (Japan) and KFDA (Korea) keeps widening on cosmetic claim substantiation, sunscreen filters, and quasi-drug boundaries. The most expensive mistakes in cross-border launches in 2025 came from assuming the two regimes were closer than they are.
Freight exposure on KR ↔ JP lanes has stayed elevated through 2026 — typhoon-season reroutes into Shanghai add 9–14 days and break fill-finish sequencing for time-bound launches.
Get the Tier-A corridor brief — the same one-pager our OEM partners read, distilled from a year of cross-border launches.
Download the Tier-A corridor brief (PDF)