| Vendor | Spec | Unit | Price | Currency | Date |
| 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 | 1091.81 | USD | 20250730 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1084.81 | USD | 20250730 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1090.74 | USD | 20250729 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1083.75 | USD | 20250729 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1091.41 | USD | 20250728 |