| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Luxi Chem | China national standards | MT | 234.75 | USD | 20260104 |
| Shandong Dongyue | China national standards | MT | 231.9 | USD | 20260104 |
| Shandong Jinling | China national standards | MT | 234.75 | USD | 20260104 |
| Shandong Jinling | China national standards | MT | 234.75 | USD | 20260104 |
| Shandong Dongyue | China national standards | MT | 231.9 | USD | 20260104 |
| Shandong Luxi Chem | China national standards | MT | 234.75 | USD | 20260104 |
| Dongying Huatai Chem | China national standards | MT | 234.75 | USD | 20251231 |
| Dongying Huatai Chem | China national standards | MT | 234.75 | USD | 20251231 |
| Shandong Jinling | China national standards | MT | 238.81 | USD | 20251230 |
| Shandong Luxi Chem | China national standards | MT | 238.81 | USD | 20251230 |