| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1099.09 | USD | 20251016 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1113.18 | USD | 20251016 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 986.36 | USD | 20251016 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.18 | USD | 20251016 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 810.22 | USD | 20251016 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 806.0 | USD | 20251016 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 930.0 | USD | 20251016 |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.0 | USD | 20251016 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 930.0 | USD | 20251016 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 930.0 | USD | 20251016 |