| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.17 | USD | 20250905 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.03 | USD | 20250905 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 816.17 | USD | 20250905 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 844.45 | USD | 20250904 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 844.45 | USD | 20250904 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 844.45 | USD | 20250904 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 844.45 | USD | 20250904 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 788.16 | USD | 20250904 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1140.01 | USD | 20250904 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1055.56 | USD | 20250904 |