| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.87 | USD | 20251114 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.87 | USD | 20251114 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 931.87 | USD | 20251114 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.2 | USD | 20251114 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 734.2 | USD | 20251114 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.2 | USD | 20251114 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.87 | USD | 20251114 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 931.87 | USD | 20251114 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 931.87 | USD | 20251114 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1284.86 | USD | 20251114 |