| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1463.19 | USD | 20250618 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1463.19 | USD | 20250618 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1463.5 | USD | 20250617 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1462.62 | USD | 20250616 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1460.65 | USD | 20250614 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1460.65 | USD | 20250613 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1460.65 | USD | 20250612 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1460.65 | USD | 20250611 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1460.65 | USD | 20250610 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1460.65 | USD | 20250609 |