每天三分钟公告很轻松|天玑科技：公司及相关责任人涉嫌串通投标被提起诉讼；多家公司筹划控制权变更事项

Core Viewpoint - Several companies are undergoing significant changes, including legal issues, control changes, and financial forecasts, which may present both opportunities and risks for investors. Group 1: Legal Issues - Tianji Technology has been sued for allegedly colluding in bidding, but the company claims its operations remain normal and the lawsuit has not significantly impacted it [2] Group 2: Control Changes - Yichang Technology is planning a control change, with its major shareholder notifying that discussions are ongoing, leading to a temporary stock suspension [3] - Aolian Electronics is also in discussions for a potential control change, resulting in a stock suspension [3] - Dook Culture is similarly planning a control change, with its stock suspended as negotiations are ongoing [3] - Xusheng Group is transferring control to Guangzhou Industrial Investment Holding Group, which will become the new controlling shareholder [9] Group 3: Financial Forecasts - Sanhua Intelligent Controls expects a net profit increase of 25%-50% for 2025, driven by strong performance in its air conditioning components and automotive parts businesses [4] Group 4: Stock Listings and Trading - ST Dongtong's stock will be delisted following a decision by the Shenzhen Stock Exchange, with a trading suspension period leading up to its final trading date [5] - ST Zhengtong will have its risk warning lifted, changing its stock name and increasing its trading limit [10] Group 5: Capital Raising and Investments - Nanya New Materials plans to raise up to 900 million yuan through a private placement for AI-based projects [7] - Yingfeng Co. aims to raise up to 522 million yuan for upgrading production lines and wastewater treatment systems [7] Group 6: Major Contracts and Projects - Zhuoran Co. signed a significant contract worth 40.33 billion yuan, representing 142.09% of its audited revenue for 2024 [13] - China General Nuclear Power has begun construction on its Lufeng Unit 2, with a capacity of 1245 MW [15]