| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 742.06 | USD | 20251205 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1095.42 | USD | 20251205 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 890.47 | USD | 20251205 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| Zhenghe Group Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 932.88 | USD | 20251205 |