| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 491.84 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 562.11 | USD | 20250825 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.74 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.84 | USD | 20250823 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 476.72 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 560.84 | USD | 20250822 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.74 | USD | 20250822 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 476.72 | USD | 20250822 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 490.97 | USD | 20250821 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 476.95 | USD | 20250821 |