| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Juexin | China national standards | MT | 1242.66 | USD | 20251117 |
| Shandong Daoqin Chem | China national standards | MT | 1242.5 | USD | 20251116 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1087.19 | USD | 20251115 |
| Shandong Qiangsen Chem | China national standards | MT | 1256.62 | USD | 20251115 |
| Hunan JinyuChem | China national standards | MT | 1016.59 | USD | 20251115 |
| Shandong Daoqin Chem | China national standards | MT | 1270.74 | USD | 20251115 |
| Shandong Henrui Chem | Polycarbonate Grade | MT | 1016.59 | USD | 20251114 |
| Shandong Hanyue Chem | China national standards | MT | 1115.43 | USD | 20251114 |
| Shandong Tongzhou Chem | China national standards | MT | 1411.93 | USD | 20251114 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1016.59 | USD | 20251114 |