| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.83 | USD | 20251106 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.72 | USD | 20251104 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.82 | USD | 20251103 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.75 | USD | 20251031 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.83 | USD | 20251030 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.95 | USD | 20251029 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.88 | USD | 20251028 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.74 | USD | 20251027 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.49 | USD | 20251024 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 383.54 | USD | 20251023 |