| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1468.33 | USD | 20250710 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1747.25 | USD | 20250709 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1467.69 | USD | 20250709 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1747.42 | USD | 20250708 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1467.83 | USD | 20250708 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1468.41 | USD | 20250707 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1467.81 | USD | 20250705 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1747.4 | USD | 20250704 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1467.81 | USD | 20250704 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1747.69 | USD | 20250703 |