Rare earth permanent magnet concept callback, North Mining Technology leading decline.

Rare earth permanent magnet concept callback, North Mining Technology fell more than 8%, Huayang New Materials fell more than 7%, Zhongke Magnetic Industry, Ningbo Yunsheng and others led the decline. Huayang New Materials announced on the evening of June 17th that the company's stock price has recently shown a more obvious upward trend. Overall, there is a risk of irrational speculation.