| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.84 | USD | 20250818 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 476.38 | USD | 20250816 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.4 | USD | 20250816 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.45 | USD | 20250816 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 476.38 | USD | 20250816 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.45 | USD | 20250815 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 476.38 | USD | 20250815 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.4 | USD | 20250815 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.72 | USD | 20250814 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 476.61 | USD | 20250814 |