| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 897.35 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 904.36 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.4 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.41 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 841.27 | USD | 20250823 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 841.27 | USD | 20250823 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 644.97 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 743.12 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 813.22 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 813.22 | USD | 20250823 |