| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 1254.76 | USD | 20251021 |
| Sinopec | China national standards | MT | 1268.09 | USD | 20251020 |
| Shanghai Juexin | China national standards | MT | 1268.09 | USD | 20251020 |
| Shandong Daoqin Chem | China national standards | MT | 1268.09 | USD | 20251020 |
| Jinan Aochen Chem | China national standards | MT | 1549.89 | USD | 20251020 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1056.74 | USD | 20251020 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1056.74 | USD | 20251020 |
| Shandong Tongzhou Chem | China national standards | MT | 1408.99 | USD | 20251020 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1084.92 | USD | 20251020 |
| Shandong Qiangsen Chem | China national standards | MT | 1254.0 | USD | 20251020 |