| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.24 | USD | 20251112 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.96 | USD | 20251111 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.05 | USD | 20251110 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.21 | USD | 20251107 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.97 | USD | 20251106 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.67 | USD | 20251105 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.8 | USD | 20251104 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.95 | USD | 20251103 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.85 | USD | 20251031 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.15 | USD | 20251029 |