Group 1 - Beijing Tianma Zhikong Technology Co., Ltd. has obtained a patent for "Control Method, Device, Equipment, and Storage Medium for Coal Mining Machine Based on Trajectory Tracking" with authorization announcement number CN120026918B, applied on January 2025 [1] - The company was established in 2001 and is primarily engaged in the manufacturing of instruments and meters, with a registered capital of 433 million RMB [1] - The company has made investments in 4 enterprises, participated in 2,859 bidding projects, holds 40 trademark registrations, and has 1,659 patents, along with 34 administrative licenses [1] Group 2 - Beijing Coal Science Tianma Automation Technology Co., Ltd., established in 2013, focuses on technology promotion and application services, with a registered capital of 530 million RMB [1] - This subsidiary has participated in 44 bidding projects, holds 1,386 patents, and has 59 administrative licenses [1]