| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 942.31 | USD | 20251009 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 921.21 | USD | 20251009 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 921.82 | USD | 20250930 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 942.93 | USD | 20250930 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 928.86 | USD | 20250930 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 927.59 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 941.65 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 920.56 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 920.56 | USD | 20250926 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 941.65 | USD | 20250926 |