| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1768.38 | USD | 20251211 |
| Shandong Hongyang Chem | China national standards | MT | 1766.71 | USD | 20251210 |
| Shandong Hongyang Chem | China national standards | MT | 1766.21 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 1766.43 | USD | 20251208 |
| Shandong Hongyang Chem | China national standards | MT | 1766.81 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 1767.21 | USD | 20251204 |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251203 | |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251202 | |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251201 | |
| Shandong Hongyang Chem | China national standards | MT | USD | 20251128 |