| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 931.22 | USD | 20251123 |
| Jinan Jinrihe Chem | China national standards | MT | 931.22 | USD | 20251123 |
| Qingdao Shengze Chem | China national standards | MT | 931.22 | USD | 20251122 |
| Shandong Qiangsen Chem | China national standards | MT | 888.89 | USD | 20251122 |
| Jinan Jinrihe Chem | China national standards | MT | 931.22 | USD | 20251122 |
| Jinan Angxin Chem | China national standards | MT | 931.22 | USD | 20251122 |
| Jinan Angxin Chem | China national standards | MT | 931.22 | USD | 20251122 |
| Guangzhou Tianyue Chem | China national standards | MT | 1227.51 | USD | 20251122 |
| Jinan Angxin Chem | China national standards | MT | 931.22 | USD | 20251122 |
| Shandong Qiangsen Chem | China national standards | MT | 888.89 | USD | 20251122 |