| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1270.74 | USD | 20251116 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.87 | USD | 20251116 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 945.99 | USD | 20251116 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 1186.02 | USD | 20251115 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 931.87 | USD | 20251115 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 903.64 | USD | 20251115 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1270.74 | USD | 20251115 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 945.99 | USD | 20251115 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 988.35 | USD | 20251115 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 931.87 | USD | 20251115 |