The Rare Earth ETF Caught Right in the Middle of the U.S.-China Trade War

The Earth Strategic Metals ETF includes 20 companies focused on rare earth metals, crucial for technologies like jet engines and smartphones. The US-China trade war has highlighted the US's reliance on China for these metals, with China producing 95% of global output. The ETF, REM X, is volatile due to its small and midcap holdings, and has seen increased trading as investors speculate on China's potential use of metals in trade disputes. The fund has a 61 basis point expense ratio and is rated positively by Bloomberg.

Which countries are mentioned as the top producers of rare earth metals?

What is the expense ratio of the REM X fund?