| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 840.93 | USD | 20250813 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 819.9 | USD | 20250813 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.9 | USD | 20250813 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 658.72 | USD | 20250813 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 742.82 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 903.99 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.03 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 896.99 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.03 | USD | 20250813 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 840.93 | USD | 20250813 |