| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 789.09 | USD | 20251016 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 802.87 | USD | 20251015 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 802.58 | USD | 20251014 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 802.74 | USD | 20251013 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 801.67 | USD | 20251009 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 815.88 | USD | 20250929 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 815.16 | USD | 20250928 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 815.16 | USD | 20250926 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 816.25 | USD | 20250925 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 816.25 | USD | 20250924 |