| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1623.47 | USD | 20251107 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1623.47 | USD | 20251107 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.8 | USD | 20251106 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.8 | USD | 20251106 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1621.98 | USD | 20251105 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1621.98 | USD | 20251105 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.35 | USD | 20251104 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.35 | USD | 20251104 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.76 | USD | 20251103 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1622.76 | USD | 20251103 |