| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.68 | USD | 20250913 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 788.52 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1056.06 | USD | 20250912 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1140.54 | USD | 20250912 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 844.84 | USD | 20250912 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 844.84 | USD | 20250912 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 816.81 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1140.72 | USD | 20250909 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1056.22 | USD | 20250909 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 985.8 | USD | 20250909 |