| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 339.04 | USD | 20251128 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 339.08 | USD | 20251127 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 339.0 | USD | 20251126 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 338.86 | USD | 20251125 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 338.76 | USD | 20251124 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 338.62 | USD | 20251123 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 338.62 | USD | 20251121 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 338.48 | USD | 20251120 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 338.64 | USD | 20251119 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 338.72 | USD | 20251118 |