| Vendor | Spec | Unit | Price | Currency | Date |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.3 | USD | 20250806 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.95 | USD | 20250805 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.96 | USD | 20250805 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.51 | USD | 20250804 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.51 | USD | 20250804 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1083.98 | USD | 20250801 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1090.97 | USD | 20250801 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1084.01 | USD | 20250731 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1091.0 | USD | 20250731 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1084.81 | USD | 20250730 |