Shocked China! The Real Reason Japan Is Unfazed Despite Rare Earth Blockade / Japan's Fully Prepared Secret Weapon Is 'This' (Rare Earth War) Professor Yuji Hosaka

충격 받은 중국! 희토류 봉쇄에도 일본이 끄떡없는 진짜 이유 / 만반의 준비를 한 일본의 비밀 무기는 '이 것' (희토류 전쟁) 호사카 유지 교수
Watch on YouTube ↗  |  January 17, 2026 at 05:00  |  19:39  |  815 Money Talk (815머니톡)
Speakers
Yuji Hosaka — Professor, Daeyang Humanity College, Sejong University
Hwang Eui-won — PB Team Lead, Shinhan Investment & Securities

Summary

The interview discusses China's dual-use export ban on Japan, with rare earths viewed as the main pressure point. It explains Japan's post-2010 rare-earth recycling, stockpiles, and Minamitorishima survey plans, while noting that commercial production is not near. It also highlights Japan's roughly 70% global photoresist share as counter-leverage and discusses why political conditions make de-escalation difficult.

  • China imposed dual-use export restrictions on Japan, widely seen as targeting rare earths.
  • Japan's 2010 rare-earth experience led to recycling systems and inventory stockpiles.
  • Japan plans to survey high-quality rare-earth mud near Minamitorishima, but commercialization is not expected until next year.
  • Japan retains strong rare-earth refining and materials expertise, though high costs previously limited domestic production.
  • Japan controls about 70% of the global photoresist market and has already delayed exports to China.
  • Takaichi's high approval ratings make Japan unlikely to back down, complicating de-escalation.
  • The dispute is a geopolitical supply-chain watch item rather than a clear directional trade.
Ideas
Yuji Hosaka Professor, Daeyang Humanity College, Sejong University 1:28
Rare earth supply risk needs monitoring
China's dual-use export ban on Japan is seen as targeting rare earths, reviving the 2010–2012 supply-shock risk. Japan has reduced immediate vulnerability by building rare-earth recycling from used phones and cars, holding about 2–3 months of ore and 1–2 months of refined inventory, and planning a Minamitorishima rare-earth mud survey starting in January. However, commercial production is only expected next year, and Japan remains exposed if the dispute becomes prolonged, so rare-earth supply policy is a key monitorable geopolitical theme.
Yuji Hosaka Professor, Daeyang Humanity College, Sejong University 15:16
Photoresist is Japan's key China leverage
Japan controls about 70% of the global photoresist market and has already started restricting exports to China by delaying approvals from days to months, giving Tokyo counter-leverage in the China-Japan dispute. China has avoided public escalation partly because of this dependency, and the speaker says the two sides will need to handle it subtly. This makes photoresist an important supply-chain and policy watch item.
Up Next

This 815 Money Talk (815머니톡) video, published January 17, 2026, features Yuji Hosaka discussing REMX, Photoresist. 2 trade ideas extracted by AI with direction and confidence scoring.

Speakers: Yuji Hosaka  · Tickers: REMX, Photoresist