| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1149.81 | USD | 20251027 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1149.05 | USD | 20251025 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1142.0 | USD | 20251025 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1149.05 | USD | 20251024 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1149.21 | USD | 20251023 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1142.16 | USD | 20251023 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1148.63 | USD | 20251022 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1149.02 | USD | 20251021 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1148.32 | USD | 20251020 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1148.71 | USD | 20251017 |