| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.18 | USD | 20251102 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.18 | USD | 20251101 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.18 | USD | 20251031 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.6 | USD | 20251029 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.45 | USD | 20251028 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 804.16 | USD | 20251027 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 803.63 | USD | 20251024 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 803.75 | USD | 20251023 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 803.34 | USD | 20251022 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 803.61 | USD | 20251021 |