Group 1 - The article highlights the importance of weekly announcements from Sunday to Thursday, which include significant stock market updates such as suspensions, increases or decreases in holdings, investment wins, acquisitions, earnings reports, unlocks, and high transfers [1] - Key sectors mentioned include rare earth permanent magnets, humanoid robots, low-altitude economy, and new energy vehicles, with a company already supplying small batches to downstream humanoid robot clients and receiving new export licenses for rare earth-related items [1] - The article also discusses the integration of water conservancy, humanoid robots, and artificial intelligence, noting that a company has successfully sold multiple intelligent operation and maintenance robots for rail transit to clients [1] Group 2 - The company is set to mass-produce 800G optical module products and has won a 1.5 billion yuan contract for a marine energy project, indicating strong growth potential in the optical and marine sectors [1]