| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 424.03 | USD | 20251207 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.77 | USD | 20251207 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 395.77 | USD | 20251207 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 989.41 | USD | 20251207 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 325.09 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1045.95 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.03 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 424.03 | USD | 20251207 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 395.77 | USD | 20251207 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1045.95 | USD | 20251207 |