| Vendor | Spec | Unit | Price | Currency | Date |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 816.27 | USD | 20250930 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1020.34 | USD | 20250930 |
| PetroChina Company Limited | China national standards | MT | 900.28 | USD | 20250929 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 787.74 | USD | 20250929 |
| Suzhou Zixu New Materials Co., Ltd. | China national standards | MT | 1237.88 | USD | 20250929 |
| Shandong FUZE New MATERIALS Co., Ltd. | China national standards | MT | 928.41 | USD | 20250929 |
| Shandong FUZE New MATERIALS Co., Ltd. | China national standards | MT | 1055.02 | USD | 20250929 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 893.25 | USD | 20250929 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 900.28 | USD | 20250929 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 745.54 | USD | 20250929 |