公告精选︱凯撒旅业：子公司拟投资建设和运营青岛信号山青年旅居社区项目；永吉股份：三级全资子公司拟以3100万澳元购买Pijen52.69%的股权

Key Points - The stock price of Shikong Technology has seen a significant short-term increase, indicating potential market sentiment overheating and irrational speculation risks [1] - East Asia Machinery plans to invest in the construction of an intelligent manufacturing base for air compressors and core components in Central China [1] - Qiaoyin Co., Ltd. has received a bid notification for a cooperation operation project in the urban sanitation sector worth approximately 512 million yuan [1] - Yongji Co., Ltd. intends to acquire a 52.69% stake in Pijen for 31 million Australian dollars through its wholly-owned subsidiary [1] - Microchip Biotech plans to repurchase shares worth between 10 million to 15 million yuan [1] - Taiyuan Heavy Industry reported a net profit of 41.2152 million yuan for the third quarter, representing a year-on-year increase of 25.14% [1] - Kanglongda's major shareholder plans to reduce their holdings by no more than 3.00% [1] - Shengxin Lithium Energy intends to raise no more than 3.2 billion yuan through a private placement [1] - Zhongyuan Co., Ltd. plans to raise no more than 500 million yuan through a private placement [1]