| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 646.72 | USD | 20250921 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 731.08 | USD | 20250921 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250921 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 787.31 | USD | 20250921 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 745.14 | USD | 20250920 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 843.55 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 941.96 | USD | 20250920 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 934.93 | USD | 20250920 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 906.82 | USD | 20250920 |