| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 690.06 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 852.02 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 690.06 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.64 | USD | 20250909 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 788.41 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 865.84 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 851.76 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 788.41 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.86 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 689.86 | USD | 20250908 |