| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 787.53 | USD | 20250827 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 759.41 | USD | 20250827 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 786.65 | USD | 20250826 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 772.6 | USD | 20250826 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 758.55 | USD | 20250826 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 758.84 | USD | 20250825 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 772.9 | USD | 20250825 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 786.95 | USD | 20250825 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 785.18 | USD | 20250823 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 771.16 | USD | 20250823 |