| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 930.0 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 922.93 | USD | 20251210 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 876.29 | USD | 20251210 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 791.49 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.22 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.22 | USD | 20251210 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 763.22 | USD | 20251210 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 720.82 | USD | 20251210 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 756.15 | USD | 20251210 |