| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1029.18 | USD | 20251021 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 888.2 | USD | 20251021 |
| Hebei Risun Energy Limited | China national standards | MT | 958.69 | USD | 20251021 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1029.18 | USD | 20251021 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 944.59 | USD | 20251021 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Hebei Risun Energy Limited | China national standards | MT | 958.69 | USD | 20251021 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 845.9 | USD | 20251021 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 958.69 | USD | 20251021 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 888.2 | USD | 20251021 |