According to The Kobeissi Letter, China has not shipped yttrium to the US for several months, with exports stopping entirely after April export controls (The Kobeissi Letter, Nov 18, 2025). According to The Kobeissi Letter, China’s yttrium exports to the rest of the world fell by about 30% over the same period (The Kobeissi Letter, Nov 18, 2025). According to The Kobeissi Letter, before the controls the US obtained 93% of its yttrium directly from China and the remaining 7% from China-processed material, signaling high import concentration risk (The Kobeissi Letter, Nov 18, 2025). According to The Kobeissi Letter, a rare earth trader reported US inventories collapsing from roughly 200 tons to just 5 tons this year, and industry sources estimate US stockpiles at 1 to 12 months of consumption (The Kobeissi Letter, Nov 18, 2025). According to The Kobeissi Letter, yttrium is essential for high-temperature superconductors, jet engines, advanced coatings, missile systems, lasers, and specialized ceramics, and the source concludes that the US needs China’s rare earths (The Kobeissi Letter, Nov 18, 2025). According to The Kobeissi Letter, these data indicate acute supply constraints that are directly relevant to trading strategies focused on rare earths and related industrial chains; no crypto-specific impact was cited (The Kobeissi Letter, Nov 18, 2025).