| Vendor | Spec | Unit | Price | Currency | Date |
| Huaye Qingdao Energy | Industrial Grade | MT | 593.52 | USD | 20251208 |
| Huaye Qingdao Energy | Industrial Grade | MT | 579.43 | USD | 20251201 |
| Huaye Qingdao Energy | China national standards | MT | 578.05 | USD | 20251024 |
| Huaye Qingdao Energy | Industrial Grade | MT | 577.73 | USD | 20251016 |
| Huaye Qingdao Energy | Industrial Grade | MT | 577.51 | USD | 20251015 |
| Huaye Qingdao Energy | Industrial Grade | MT | 576.64 | USD | 20251009 |
| Huaye Qingdao Energy | Industrial Grade | MT | 577.0 | USD | 20250925 |
| Huaye Qingdao Energy | China national standards | MT | 576.6 | USD | 20250922 |
| Huaye Qingdao Energy | China national standards | MT | 576.43 | USD | 20250919 |
| Huaye Qingdao Energy | China national standards | MT | 576.77 | USD | 20250918 |