铜峰电子：累计对外担保总额为21000万元

Group 1 - The company announced a guarantee of 30 million yuan for its wholly-owned subsidiary, Tongfeng Shimao, to support working capital turnover [1] - The total amount of external guarantees provided by the company has reached 210 million yuan, excluding this latest guarantee [1] - The total guarantees represent 11.52% of the company's audited net assets for the fiscal year 2024 [1]