鑫科材料：为控股子公司鑫科铜业提供担保6000万元

Group 1 - The core point of the article is that Xinke Materials has signed a guarantee contract with Bank of Communications Wuhu Branch, providing a maximum joint liability guarantee of RMB 60 million for its subsidiary Xinke Copper Industry [1] - The guarantee period is three years, covering the principal balance of the main debt and associated interest, penalties, and costs related to debt recovery [1] - As of the announcement date, the total external guarantees provided by Xinke Materials and its subsidiaries amount to approximately RMB 2.265 billion, which is 158.3% of the audited net assets attributable to the parent company for the fiscal year 2024 [1] Group 2 - For the first half of 2025, Xinke Materials' revenue composition shows that manufacturing accounts for 99.91%, while other sources contribute only 0.09% [1] - The current market capitalization of Xinke Materials is RMB 7.5 billion [1]