| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 987.81 | USD | 20251030 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.79 | USD | 20251030 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.63 | USD | 20251029 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.93 | USD | 20251029 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.85 | USD | 20251028 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 987.92 | USD | 20251028 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.53 | USD | 20251028 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 564.33 | USD | 20251027 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 479.68 | USD | 20251027 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 563.95 | USD | 20251025 |