| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 818.28 | USD | 20251031 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 818.71 | USD | 20251029 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 818.27 | USD | 20251027 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 817.73 | USD | 20251024 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 789.64 | USD | 20251023 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 789.24 | USD | 20251022 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 789.51 | USD | 20251021 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 789.51 | USD | 20251021 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 789.03 | USD | 20251020 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 789.3 | USD | 20251017 |