正海磁材：关于提前赎回正海转债的第九次提示性公告

Group 1 - The core announcement is that Zhenghai Magnetic Materials will forcibly redeem its "Zhenghai Convertible Bonds" if they are not converted by the market close on September 19, 2025 [2] - Following the redemption, the "Zhenghai Convertible Bonds" will be delisted from the Shenzhen Stock Exchange [2] - Bondholders are advised to ensure that any pledged or frozen "Zhenghai Convertible Bonds" are released before the conversion deadline to avoid being redeemed without conversion [2]