| Vendor | Spec | Unit | Price | Currency | Date |
| CNPC | China national standards | MT | 1706.22 | USD | 20251229 |
| Zibo Huijie Chem | China national standards | MT | USD | 20251210 | |
| Zibo Huijie Chem | China national standards | MT | USD | 20251208 | |
| Zibo Huijie Chem | China national standards | MT | USD | 20251205 | |
| Zibo Huijie Chem | China national standards | MT | USD | 20251204 | |
| Zibo Huijie Chem | China national standards | MT | USD | 20251203 | |
| Zibo Huijie Chem | China national standards | MT | USD | 20251202 | |
| Zibo Huijie Chem | China national standards | MT | USD | 20251128 | |
| Zibo Huijie Chem | China national standards | MT | USD | 20251127 | |
| Zibo Huijie Chem | China national standards | MT | USD | 20251126 |