| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1862.93 | USD | 20251118 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1863.99 | USD | 20251117 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1863.99 | USD | 20251117 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1863.75 | USD | 20251116 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1863.75 | USD | 20251115 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1863.75 | USD | 20251114 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1862.7 | USD | 20251113 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1863.54 | USD | 20251112 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1862.67 | USD | 20251111 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1862.93 | USD | 20251110 |