| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuhuang Chem | China national standards | MT | 1367.55 | USD | 20251021 |
| Shandong Aite Chem | China national standards | MT | 1226.56 | USD | 20251021 |
| Lihuayi Shandong | China national standards | MT | 1381.64 | USD | 20251021 |
| Shandong Shuojia Chem | China national standards | MT | 883.97 | USD | 20251021 |
| Sinopec | China national standards | MT | 898.07 | USD | 20251021 |
| Shandong Yushuo Chem | China national standards | MT | 898.07 | USD | 20251021 |
| Shandong Yushuo Chem | China national standards | MT | 898.07 | USD | 20251021 |
| Shandong Yushuo Chem | China national standards | MT | 898.07 | USD | 20251021 |
| Lihuayi Shandong | China national standards | MT | 883.97 | USD | 20251021 |
| Wanhua Chem | China national standards | MT | 930.49 | USD | 20251021 |