Core Points - The stock of Tongda Co., Ltd. (300321) closed at 47.12 yuan on November 12, 2025, with a market capitalization of 4.184 billion yuan, reflecting a 0.26% increase from the previous trading day [1] - The company announced the purchase of government bond reverse repos using idle self-owned funds amounting to 80 million yuan on October 15, 2025, with annualized yields ranging from 1.50% to 1.51% [1] - The internal management system has been established to ensure fund safety, and the transaction will not significantly impact the company's main business or financial status [1] Financial Performance - The stock opened at 46.99 yuan, reached a high of 47.86 yuan, and a low of 46.28 yuan on the same day, with a trading volume of 75.8352 million yuan and a turnover rate of 1.82% [1] Investment Activity - The company engaged in three transactions of government bond reverse repos, with amounts of 60 million yuan, 10 million yuan, and 10 million yuan, all maturing on November 12, 2025 [1]