| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1073.76 | USD | 20251127 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1073.51 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1072.31 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1071.86 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1072.36 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1072.6 | USD | 20251118 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1073.2 | USD | 20251117 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1073.07 | USD | 20251114 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1072.46 | USD | 20251113 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1072.95 | USD | 20251112 |