| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.54 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.54 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.52 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 405.47 | USD | 20250908 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.83 | USD | 20250908 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1027.75 | USD | 20250908 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1027.75 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1041.83 | USD | 20250908 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.31 | USD | 20250906 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1027.24 | USD | 20250906 |