| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1190.91 | USD | 20251022 |
| Sinopec | China national standards | MT | 901.99 | USD | 20251022 |
| Wanhua Chem | China national standards | MT | 930.18 | USD | 20251022 |
| Lihuayi Shandong | China national standards | MT | 883.67 | USD | 20251022 |
| Sinopec | China national standards | MT | 901.99 | USD | 20251022 |
| Jinan Pulaihua Chem | China national standards | MT | 1268.43 | USD | 20251022 |
| Sinopec | China national standards | MT | 1268.43 | USD | 20251022 |
| Shandong Yuhuang Chem | China national standards | MT | 1268.43 | USD | 20251022 |
| Sinopec | China national standards | MT | 1106.35 | USD | 20251022 |
| Lihuayi Shandong | China national standards | MT | 1106.35 | USD | 20251022 |