| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 847.89 | USD | 20251208 |
| Hebei Risun Energy Limited | China national standards | MT | 960.94 | USD | 20251208 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 847.89 | USD | 20251208 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 847.89 | USD | 20251208 |
| Tongling Chemical Industry Group Corp.ltd | China national standards | MT | 784.3 | USD | 20251208 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 904.41 | USD | 20251208 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 960.94 | USD | 20251208 |