| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1031.82 | USD | 20251205 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 848.07 | USD | 20251205 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 904.61 | USD | 20251205 |
| Hebei Risun Energy Limited | China national standards | MT | 961.14 | USD | 20251205 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 1031.82 | USD | 20251205 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 848.07 | USD | 20251205 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 848.07 | USD | 20251205 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 890.47 | USD | 20251205 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 848.07 | USD | 20251205 |