| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 928.86 | USD | 20250930 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1027.37 | USD | 20250930 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 1027.37 | USD | 20250930 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 900.71 | USD | 20250930 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 985.15 | USD | 20250930 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.64 | USD | 20250930 |
| Hebei Risun Energy Limited | China national standards | MT | 957.01 | USD | 20250930 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 928.41 | USD | 20250929 |
| Shandong Hongxin CHEMICALS Co., Ltd. | China national standards | MT | 1026.88 | USD | 20250929 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 1026.88 | USD | 20250929 |