| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.69 | USD | 20251127 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.55 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.89 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.64 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.91 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.05 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.05 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.38 | USD | 20251117 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 592.3 | USD | 20251114 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 591.97 | USD | 20251113 |