| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 770.62 | USD | 20250817 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.61 | USD | 20250816 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 756.61 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 784.63 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 770.62 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 770.62 | USD | 20250816 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 770.62 | USD | 20250816 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 784.63 | USD | 20250816 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 868.7 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 770.62 | USD | 20250815 |