| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1042.65 | USD | 20251020 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.19 | USD | 20251020 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.57 | USD | 20251017 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1043.0 | USD | 20251017 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.27 | USD | 20251016 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1042.72 | USD | 20251016 |