| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1468.06 | USD | 20250703 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1467.59 | USD | 20250702 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1747.13 | USD | 20250702 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1467.83 | USD | 20250701 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1747.42 | USD | 20250701 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1746.15 | USD | 20250630 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1466.77 | USD | 20250630 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1465.93 | USD | 20250628 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1745.15 | USD | 20250627 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1465.93 | USD | 20250627 |