| Lushengsha Mining Machinery Co., Ltd., Qingzhou City | 2011-06-01 | Gold Dredger, Sand Making And Washing Machine, Garbage Equipment | 500K CNY | Non supportato |
| Weifang Shenghe Environmental Protection Machinery Manufacturing Co., Ltd | 2015-03-13 | Gold Dredger, Grass-Cutting Boat, Engineering Vessel | 31000K CNY | Non supportato |
| Shandong Haiding Shipbuilding Co., Ltd | 2021-06-18 | Gold Dredger, Excavator Ship, Digging Bucket Gold Dredger | 28500K CNY | Non supportato |
| Liuyang Huixin Industry and Trade Co., Ltd | 2012-03-15 | Gold Dredger, Dryland Gold Mining Equipment, Sand Transport Ship | 5000K CNY | Non supportato |
| Qingzhou Shengze Environmental Protection Technology Co., Ltd | 2024-01-08 | Gold Dredger, Grass-Cutting Boat, Sand Dredger | 3000K CNY | Supportato |
| Qingzhou Zhengsheng Environmental Protection Equipment Co., Ltd | 2017-02-22 | Gold Dredger, Sand Gold Equipment, Gold Mining Equipment | 5000K CNY | Supportato |
| Qingzhou Rongsheng Mineral Sand Machinery Co., Ltd | 2013-07-18 | Gold Dredger, Grass-Cutting Boat, Sand Washing Equipment | 6500K CNY | Non supportato |
| Qingzhou Handa Environmental Protection Equipment Co., Ltd | 2021-12-31 | Gold Dredger, Filter Press, Digging Bucket Sand Washing Machine | 3000K CNY | Supportato |
| Shicheng County Chuangda Mining Equipment Co., Ltd | 2026-01-28 | Gold Dredger, Gold Mining Ship Selection Gold Inclined Flow Screen, Reselect Device | 500K CNY | Non supportato |
| Qingzhou Huakun Environmental Protection Technology Co., Ltd | 2021-02-26 | Gold Dredger, Cutter Suction Dredger, Drum Sand Screening Machine | 1000K CNY | Non supportato |