| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1044.0 | USD | 20251027 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.9 | USD | 20251024 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1043.31 | USD | 20251024 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1128.06 | USD | 20251023 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1043.46 | USD | 20251023 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1042.93 | USD | 20251022 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.49 | USD | 20251022 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1043.28 | USD | 20251021 |