| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.8 | USD | 20251113 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.8 | USD | 20251113 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1623.54 | USD | 20251112 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1623.54 | USD | 20251112 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.78 | USD | 20251111 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.78 | USD | 20251111 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1623.01 | USD | 20251110 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1623.01 | USD | 20251110 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1623.47 | USD | 20251109 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1623.47 | USD | 20251109 |