| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 735.16 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1067.39 | USD | 20251204 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 728.09 | USD | 20251204 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1116.88 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Derun Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |