| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 928.64 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.48 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1111.55 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1111.55 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1104.51 | USD | 20250901 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1125.62 | USD | 20250901 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1062.3 | USD | 20250901 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 957.34 | USD | 20250831 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 943.26 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 957.34 | USD | 20250830 |