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Group 1 - The article highlights the importance of weekly announcements from Sunday to Thursday, focusing on significant stock market events such as suspensions, shareholding changes, investment wins, acquisitions, earnings reports, unlocks, and high transfers, with key announcements marked in red to assist investors in identifying investment hotspots and avoiding black swan events [1] - A company is involved in the IT infrastructure construction for clients' digital currency systems, integrating digital currency with cross-border payments and data centers, and is associated with Huawei's HarmonyOS [1] - Another company supports digital RMB across all payment terminals and is exploring cross-border payment applications, having released silicon optical switches with capacities of 25.6T and 51.2T [1] Group 2 - A company specializing in rare earth permanent magnets is achieving mass production in various applications, including humanoid robots and high-speed copper connections, with a projected net profit increase of over two times year-on-year for the first half of the year [1]