News: China's Leading Magnet Manufacturer Signs Key Patent Agreement To Alleviate Heavy Rare Earth Bottleneck
Views: 0 Author: Site Editor Publish Time: 2026-03-02 Origin: Site
Recently, a key development in China's high-performance rare earth permanent magnet industry directly addresses a critical "chokepoint" in the supply chain. In February 2026, a major Chinese magnet material manufacturer signed a long-term supply agreement with a domestic upstream supplier concerning key patent technology for gadolinium-iron alloy.
This move aims to tackle the dependence on heavy rare earth elements in the production of high-performance neodymium iron boron magnets. These magnets are extensively used in cutting-edge fields like electric vehicles, wind power, and robotics. To ensure performance stability at high temperatures, heavy rare earth elements such as dysprosium and terbium are typically added to the magnets. However, these two elements are not only expensive but also sourced from a highly concentrated global supply chain, with China being their primary supplier.
The signed agreement focuses on the application technology of gadolinium. The patented technology involves an innovative grain boundary diffusion process, where the core innovation is using gadolinium-iron alloy as the diffusion source to treat sintered NdFeB magnets. Its technical advantage lies in partially or fully substituting gadolinium for the traditionally required dysprosium or terbium. This can significantly enhance the coercivity and high-temperature performance of the magnet while effectively reducing the total heavy rare earth content in the magnet formula, thereby lowering raw material costs and improving supply stability.
In terms of market impact, this agreement not only strengthens the industrial chain collaboration between the two parties but, more importantly, opens up an alternative technological pathway for high-performance NdFeB magnets. This helps the industry reduce its dependence on specific heavy rare earths and enhances its resilience against international price volatility and geopolitical risks. Simultaneously, it sets an example for other magnet material companies seeking to optimize their raw material structure through technological innovation.
This development reflects how China's magnet material industry is actively responding to supply chain challenges through technological upgrading and vertical integration, aiming to consolidate its leading position in the global high-performance permanent magnet market.
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