| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1293.81 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1328.96 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1195.36 | USD | 20250827 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1018.43 | USD | 20250826 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1053.55 | USD | 20250826 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |