| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.62 | USD | 20251116 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.62 | USD | 20251114 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.48 | USD | 20251113 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.59 | USD | 20251112 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.48 | USD | 20251111 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.51 | USD | 20251110 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.58 | USD | 20251109 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.58 | USD | 20251107 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.48 | USD | 20251106 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 238.36 | USD | 20251105 |