| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 500.79 | USD | 20250614 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 500.79 | USD | 20250614 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 500.79 | USD | 20250614 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 486.88 | USD | 20250614 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 486.88 | USD | 20250614 |
| Shandong Qiangsen Chemical Co., Ltd. | 55% | MT | 625.99 | USD | 20250614 |
| China national standards | MT | 380.0 | USD | 20171223 | |
| China national standards | MT | 80.0 | USD | 20171223 | |
| China national standards | MT | 2150.0 | USD | 20171223 | |
| China national standards | MT | 1840.0 | USD | 20171223 |