| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 960.53 | USD | 20251202 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.53 | USD | 20251202 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 904.03 | USD | 20251202 |
| Hebei Risun Energy Limited | China national standards | MT | 960.53 | USD | 20251202 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 847.53 | USD | 20251202 |
| Zhenjiangunionchemicalindustry Co., Ltd. | China national standards | MT | 798.09 | USD | 20251202 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 904.03 | USD | 20251202 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |