| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Liancheng Chemical Co., Ltd. | China national standards | MT | 1197.05 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.62 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.7 | USD | 20250909 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 844.98 | USD | 20250909 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.19 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.19 | USD | 20250908 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1147.42 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.19 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.19 | USD | 20250908 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.19 | USD | 20250908 |