| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 971.05 | USD | 20250925 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 971.05 | USD | 20250925 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 999.2 | USD | 20250925 |
| Shandong Hanyue Chemical Co., Ltd. | China national standards | MT | 999.2 | USD | 20250925 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 942.9 | USD | 20250925 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 942.9 | USD | 20250925 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 942.9 | USD | 20250925 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 942.9 | USD | 20250925 |
| Lihuayi Group Co., Ltd. | China national standards | MT | 942.9 | USD | 20250925 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 942.9 | USD | 20250925 |