| Vendor | Spec | Unit | Price | Currency | Date |
| 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 | 1042.72 | USD | 20251016 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.27 | USD | 20251016 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1126.84 | USD | 20251015 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1042.33 | USD | 20251015 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1126.43 | USD | 20251014 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1041.95 | USD | 20251014 |