| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.44 | USD | 20251115 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.44 | USD | 20251114 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 776.56 | USD | 20251114 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.01 | USD | 20251113 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 776.12 | USD | 20251113 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.36 | USD | 20251112 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 776.47 | USD | 20251112 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 776.11 | USD | 20251111 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.0 | USD | 20251111 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.11 | USD | 20251110 |