| Vendor | Spec | Unit | Price | Currency | Date |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 733.98 | USD | 20251124 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 741.03 | USD | 20251124 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 733.98 | USD | 20251124 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1115.08 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 733.98 | USD | 20251124 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 733.98 | USD | 20251124 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 733.98 | USD | 20251124 |