| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1008.81 | USD | 20250816 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1036.84 | USD | 20250816 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 952.77 | USD | 20250816 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 980.79 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1008.81 | USD | 20250815 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1036.84 | USD | 20250815 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 952.77 | USD | 20250815 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 980.79 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.74 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1190.96 | USD | 20250815 |