| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251207 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 904.61 | USD | 20251207 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.67 | USD | 20251207 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 947.01 | USD | 20251207 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 989.41 | USD | 20251206 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 890.47 | USD | 20251206 |
| China national standards | MT | 911.67 | USD | 20251206 | |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 911.67 | USD | 20251206 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 890.47 | USD | 20251206 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 918.74 | USD | 20251206 |