Group 1 - The core business of the company is divided into two main segments: mobile communication equipment and precision box systems [2] - The mobile communication equipment segment includes RF devices and antennas, primarily serving outdoor macro base stations with clients like ZTE, Ericsson, and others [2] - The precision box systems segment covers elevator car systems and other specialized equipment, utilized in various industries including elevator manufacturing and medical devices, with notable clients such as Schindler and Thermo Fisher [2] Group 2 - The company currently holds a 20% stake in the target company, with plans to increase its share and achieve control still in the planning stage [3] - The investment will provide financial support for the target company's expansion, facilitate customer resource sharing, and utilize excess production capacity [4] - The target company specializes in optical communication technology, focusing on the R&D, production, and sales of optical communication products, including optical modules and active optical cables [5]

Group 1 - The article highlights the strong quarterly performance of Credo, an AEC company, which saw a stock increase of over 10% on the 2nd, following a cash and stock acquisition of Celestial AI for approximately $3.25 billion, focusing on photonic interconnects [1] - AEC (Active Electrical Cable) includes components such as copper cables, connectors, Retimer chips, and PCBs, with Retimer chips amplifying signals to extend copper cable connection distances [1] - AOC (Active Optical Cable) consists of optical modules and fiber cables for high-speed signal transmission, differing from DAC (Direct Attach Copper) in terms of power consumption and distance capabilities [1] Group 2 - Companies involved in AEC include XinKe Materials, which has a market cap of 7.387 billion and is producing 240,000 high-speed copper connections for 800G and 1.6T [2] - Huilv Ecology, with a market cap of 11.184 billion, has launched AEC series products with mass production capabilities [2] - Zhaolong Interconnect, valued at 14.297 billion, is a leader in high-speed cables, delivering single-channel 112G AEC solutions [2] Group 3 - Companies in the AOC sector include Longfly Fiber, with a market cap of 45.193 billion, currently in the trial certification phase for AOC products [3] - Huagong Technology, valued at 75.253 billion, has achieved bulk delivery of 200G AOC products [4] - New Yisheng, with a market cap of 334.244 billion, has released 800G AOC products [4]