| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1183.38 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1089.22 | USD | 20250928 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1089.22 | USD | 20250926 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1183.38 | USD | 20250926 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1184.96 | USD | 20250925 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1090.67 | USD | 20250925 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1090.67 | USD | 20250924 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1184.96 | USD | 20250924 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1184.96 | USD | 20250923 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1090.67 | USD | 20250923 |