| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 815.68 | USD | 20250922 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 984.45 | USD | 20250922 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 787.56 | USD | 20250922 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 787.31 | USD | 20250920 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 984.14 | USD | 20250920 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 815.43 | USD | 20250920 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 927.9 | USD | 20250919 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 885.73 | USD | 20250919 |
| Wanhua PETROCHEMICAL(Yantai) Co., Ltd. | China national standards | MT | 984.14 | USD | 20250919 |