Group 1 - The State Intellectual Property Office of China has granted a patent for a train positioning correction method and device to Guoneng Xinshi Zhunchi Railway (Shanxi) Co., Ltd., Guoneng Xinshi Railway Co., Ltd., and Beijing All-Rail Communication Signal Research and Design Institute Group Co., Ltd. The patent authorization announcement number is CN119428801B, with an application date of November 2024 [1][2]. Group 2 - Guoneng Xinshi Zhunchi Railway (Shanxi) Co., Ltd. was established in 2011, located in Shuozhou City, primarily engaged in the railway transportation industry, with a registered capital of 5,456.83 million RMB. The company has participated in 942 bidding projects and holds 83 patents, along with 16 administrative licenses [1]. - Guoneng Xinshi Railway Co., Ltd. was established in 2020, located in Ordos City, also primarily engaged in the railway transportation industry, with a registered capital of 10,888.35 million RMB. The company has invested in 5 enterprises, participated in 4,601 bidding projects, holds 272 patents, and has 95 administrative licenses [1]. - Beijing All-Rail Communication Signal Research and Design Institute Group Co., Ltd. was established in 1994, located in Beijing, primarily engaged in software and information technology services, with a registered capital of 2,010 million RMB. The company has invested in 12 enterprises, participated in 5,000 bidding projects, holds 2,380 patents, and has 27 administrative licenses [2].