| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1134.53 | USD | 20250804 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 980.46 | USD | 20250804 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 840.39 | USD | 20250804 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 840.39 | USD | 20250804 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 840.39 | USD | 20250804 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 840.39 | USD | 20250804 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 840.39 | USD | 20250804 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 812.38 | USD | 20250804 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.38 | USD | 20250804 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 839.21 | USD | 20250802 |