| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1045.51 | USD | 20251127 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.28 | USD | 20251127 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.01 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1045.26 | USD | 20251126 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1044.09 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1128.75 | USD | 20251121 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1128.27 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1043.65 | USD | 20251120 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1044.14 | USD | 20251119 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1128.8 | USD | 20251119 |