| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250902 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.92 | USD | 20250901 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.92 | USD | 20250901 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 970.85 | USD | 20250901 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.92 | USD | 20250901 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.04 | USD | 20250828 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.04 | USD | 20250828 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.04 | USD | 20250828 |