| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.65 | USD | 20250918 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 773.72 | USD | 20250918 |
| Shandong Jiachang Chemical Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 872.2 | USD | 20250918 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 991.77 | USD | 20250918 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 915.14 | USD | 20250916 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 901.07 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 901.07 | USD | 20250916 |