Mosaic and Rainbow Rare Earths to Advance Project in Brazil with 2027 Construction Plan

Faraday rotator supplier GRANGPT issued a statement on production cuts. The core upstream raw material for Faraday rotators is SGGG (Substituted Gadolinium Gallium Garnet), which is made from bismuth-substituted rare-earth garnet using the liquid phase epitaxy (LPE) method. Nearly all of the rare earths used by GRANOPT’s substrate supplier, SMM Precision, relied on supply from China, and the time consumed in the current acceptance process by China’s Ministry of Commerce has far exceeded expectations, so the company will gradually reduce Faraday rotator production starting in January 2026.

[SMM Analysis:Rare Earth Ore Imports Surge in Early 2026, Exceeding Demand and Causing Surplus] According to the latest data from the General Administration of Customs, from January to February 2026, China’s imports of mixed rare earth carbonate were about 3,013.7 mt, up 321% YoY. Over the same period, imports of unlisted rare earth oxides were about 12,860.4 mt, also posting a sharp increase of 209% YoY.

POSCO International said on Monday that it was accelerating efforts to build a stable global supply chain for heavy rare earths, a key component in EV motors, by establishing its first corporate venture capital (CVC) fund. The company said it had set up a 25 billion won (about $16 million) CVC fund in partnership with POSCO Venture Capital, marking its first such initiative. As the fund’s first deployment, the company will invest 8 billion won in a China rare earth separation and refining specialist enterprise.