| Tianjin Mingxuan New Energy Technology Development Co., Ltd | 2017-03-22 | Photovoltaic Trough, , Aluminum Alloy Photovoltaic Guide Rail | 50000K CNY | Supported |
| Tianjin Donggang Iron and Steel Co., Ltd | 2014-10-08 | Photovoltaic Trough, Precision Steel Pipe, Square Tube | 6000K CNY | Supported |
| Tianjin Qiangqiang Metal Products Co., Ltd | 2023-03-09 | Photovoltaic Trough, Fixed Bracket Accessories, Color Steel Tile Fixture Slide Rail | 30000K CNY | Supported |
| Tianjin Jiahe Yifang Technology Development Co., Ltd | 2021-12-06 | Photovoltaic Trough, Galvanized Pipe, Straight Seam Welded Pipe (Black Pipe) | 10000K CNY | Supported |
| Tianjin Jucai Huixin Industry and Trade Co., Ltd | 2024-03-14 | Photovoltaic Trough, Square Tube, Cable Tray | 10000K CNY | Supported |
| Tianjin Baili Steel Industry Co., Ltd | 2021-09-07 | Photovoltaic Trough, Hot Dip Galvanized Photovoltaic Bracket, Aluminum Alloy Photovoltaic Guide Rail | 10000K CNY | Supported |
| Tianjin Shuangda Color Steel Plate Co., Ltd | 2010-07-16 | Photovoltaic Trough, Water Trough, Downpipe Bend | 5000K CNY | Not Supported |
| Tianjin Xinyuan Large Greenhouse Co., Ltd | 2020-03-10 | Photovoltaic Trough, Stainless Steel Seamless Pipe, National Standard Equilateral Angle Steel | 1000K CNY | Supported |
| Mingxuan Metal Processing Factory, Jinghai District, Tianjin | 2021-12-15 | Photovoltaic Trough, Aluminum Alloy Photovoltaic Bracket, Zinc Aluminum Magnesium C-Shaped Steel | - | Supported |
| Jingxin Steel Business Department, Jinghai District, Tianjin (Individual Industrial and Commercial Household) | 2024-11-25 | Photovoltaic Trough, Roof Tread, Fixture | - | Not Supported |