| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 504.1 | USD | 20250723 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 490.1 | USD | 20250723 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 490.1 | USD | 20250723 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 504.1 | USD | 20250723 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 503.78 | USD | 20250722 |
| Shandong Qiangsen Chemical Co., Ltd. | 40% | MT | 489.78 | USD | 20250722 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 489.78 | USD | 20250722 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 489.78 | USD | 20250722 |
| Zibo Lishuo Chemical Trading Co., Ltd. | China national standards | MT | 489.78 | USD | 20250722 |
| Shandong Qiangsen Chemical Co., Ltd. | 55% | MT | 629.72 | USD | 20250722 |