| Cov Npe Khoom Muag | |
| Tus lej Serial | Lub Npe Tus Neeg Muab Khoom |
| 1 | Jixi Shentai Tshiab Zog Co., Ltd. |
| 2 | Qingdao Pingdu Fukang Graphite Ua Hoobkas |
| 3 | Qingdao Weijie Graphite Co., Ltd. |
| 4 | Qingdao Baixing Graphite Co., Ltd. |
| 5 | Qingdao Qingbei Carbon Khoom Co., Ltd. |
| 6 | Jixi Jinyu Graphite Co., Ltd. |
| 7 | Jixi Haisheng Cov Khoom Siv Zog Tshiab, Ltd. |