| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 759.61 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.68 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 787.74 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 787.93 | USD | 20250901 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.86 | USD | 20250901 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 759.79 | USD | 20250901 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 759.89 | USD | 20250828 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.96 | USD | 20250828 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 788.03 | USD | 20250828 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 759.41 | USD | 20250827 |