正虹科技：公司及其控股子公司对外担保额度总金额4.42亿元

Group 1 - The core point of the article is that Zhenghong Technology has announced its external guarantee amounts and revenue composition, highlighting its financial stability and business focus [1] Group 2 - As of the announcement date, the total external guarantee amount by the company and its subsidiaries is 442 million yuan, with a total balance of 102 million yuan, accounting for 28.17% of the company's latest audited net assets [1] - The total guarantee amount provided to entities outside the consolidated financial statements is 37.786 million yuan, representing 10.41% of the company's latest audited net assets, with no overdue or litigation-related guarantees [1] - For the first half of 2025, the revenue composition of Zhenghong Technology is as follows: feed industry accounts for 82.52%, breeding industry accounts for 16.72%, other businesses account for 0.53%, and other industries account for 0.23% [1] - The current market capitalization of Zhenghong Technology is 2.5 billion yuan [1]