| Vendor | Spec | Unit | Price | Currency | Date |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 932.68 | USD | 20251208 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 819.63 | USD | 20251208 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 876.15 | USD | 20251208 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1102.26 | USD | 20251208 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 741.9 | USD | 20251208 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 876.15 | USD | 20251208 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.99 | USD | 20251207 |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 727.93 | USD | 20251207 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 805.67 | USD | 20251207 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 727.93 | USD | 20251207 |