| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 729.35 | USD | 20251104 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 729.57 | USD | 20251030 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 738.25 | USD | 20251029 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 743.76 | USD | 20251028 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 757.61 | USD | 20251027 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 757.11 | USD | 20251024 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 757.08 | USD | 20251021 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 777.76 | USD | 20251020 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 783.66 | USD | 20251017 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 798.95 | USD | 20251016 |