| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1167.27 | USD | 20250922 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1075.53 | USD | 20250921 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1075.53 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250920 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1138.79 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1265.32 | USD | 20250920 |
| Dongying Huatai Chemical Group Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250920 |