| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.15 | USD | 20251022 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.41 | USD | 20251021 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.31 | USD | 20251021 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 774.94 | USD | 20251020 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 760.85 | USD | 20251020 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.11 | USD | 20251017 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.2 | USD | 20251017 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.0 | USD | 20251016 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 760.91 | USD | 20251016 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 760.62 | USD | 20251015 |