| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 741.03 | USD | 20251124 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 740.74 | USD | 20251121 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 750.3 | USD | 20251120 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 750.82 | USD | 20251118 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 745.59 | USD | 20251117 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 743.67 | USD | 20251113 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 741.18 | USD | 20251112 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 740.83 | USD | 20251111 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 740.94 | USD | 20251110 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 740.47 | USD | 20251105 |