| Jining Yongmei Mining Machinery Co., Ltd | 2014-11-25 | Mine Dust Sensor, Jyb, Electromagnetic Starter | 100K CNY | Non supportato |
| Middling coal Industry and Mining Materials Group Co., Ltd | 2001-04-23 | Mine Dust Sensor, Large-Scale Equipment, Spraying Equipment | 100000K CNY | Non supportato |
| Shandong Pumei Intelligent Equipment Co., Ltd | 2020-04-20 | Mine Dust Sensor, Supporting Equipment, Mining Equipment | 3000K CNY | Supportato |
| Sifang Optoelectronics Co., Ltd | 2003-05-22 | Mine Dust Sensor, Sulfur Hexafluoride Sensor, Oil Fume Sensor | 100100K CNY | Non supportato |
| Zhongke Qihui (Beijing) Technology Co., Ltd | 2018-11-30 | Mine Dust Sensor, , Online Radiation Detector | 6000K CNY | Non supportato |
| Shijiazhuang Dongya Electronic Technology Co., Ltd | 2012-08-21 | Mine Dust Sensor, Concentration Detector, Dust Concentration Sensor | 10000K CNY | Non supportato |
| Shandong Xiaoda Electromechanical Equipment Co., Ltd | 2020-03-30 | Mine Dust Sensor, Arch Breaker, Drilling Rig And Accessories | 3000K CNY | Non supportato |
| Shandong Kuang'an Heavy Industry Co., Ltd | 2020-11-05 | Mine Dust Sensor, Emergency Stop Sensor, Zfk127 Mining Dump Truck Electric Control Device | 51180K CNY | Non supportato |
| Zhongyi Intelligent Equipment Co., Ltd | 2020-06-15 | Mine Dust Sensor, Mining Vehicles, Etc, Large-Scale Equipment | 50000K CNY | Supportato |
| Qingdao Jundao Environmental Protection Technology Co., Ltd | 2021-08-20 | Mine Dust Sensor, Japan's New Universe, Riken Japan | 2000K CNY | Non supportato |