| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250906 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250906 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 970.96 | USD | 20250906 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250906 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250905 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250905 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250905 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 970.96 | USD | 20250905 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 985.19 | USD | 20250904 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250902 |