Group 1 - The company Urat Rear Flag Zijin Mining Co., Ltd. has obtained a patent for a "slurry pool liquid level sensor," which aims to improve the accuracy of liquid level measurement in mining operations [1] - The patent includes a design that prevents the formation of continuous sediment layers, thereby reducing false alarms caused by sedimentation affecting the probes [1] - The sensor design features a base, insulating sleeves, probes, and insulating caps, with a continuous cleaning mechanism to minimize slurry attachment on the sleeves [1] Group 2 - Urat Rear Flag Zijin Mining Co., Ltd. was established in 2004 and is located in Bayannur City, primarily engaged in the non-ferrous metal mining and selection industry [2] - The company has a registered capital of 150 million RMB and has made investments in two other enterprises [2] - The company has participated in 34 bidding projects and holds 42 patents, along with 32 administrative licenses [2]