| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Luxi Chem | China national standards | MT | 296.4 | USD | 20260611 |
| Dongying Huatai Chem | China national standards | MT | 293.48 | USD | 20260609 |
| Shandong Jinling | China national standards | MT | 299.31 | USD | 20260605 |
| Shandong Dongyue | China national standards | MT | 302.24 | USD | 20260605 |
| Shandong Luxi Chem | China national standards | MT | 293.44 | USD | 20260605 |
| Shandong Luxi Chem | China national standards | MT | 296.17 | USD | 20260604 |
| Shandong Dongyue | China national standards | MT | 299.19 | USD | 20260603 |
| Dongying Huatai Chem | China national standards | MT | 296.26 | USD | 20260603 |
| Shandong Dongyue | China national standards | MT | 296.24 | USD | 20260602 |
| Shandong Jinling | China national standards | MT | 293.31 | USD | 20260602 |