| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Risun Energy Limited | China national standards | MT | 956.55 | USD | 20250929 |
| Panjin Read Chemical Co., Ltd. | China national standards | MT | 873.55 | USD | 20250929 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 900.28 | USD | 20250929 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 928.41 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 928.41 | USD | 20250929 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 886.21 | USD | 20250929 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 872.15 | USD | 20250929 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 942.48 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 914.35 | USD | 20250929 |