| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 921.16 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 942.26 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 928.19 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 927.9 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 941.96 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 920.88 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 921.43 | USD | 20250918 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 942.53 | USD | 20250918 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 928.47 | USD | 20250918 |