| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chem | China national standards | MT | 1083.67 | USD | 20251001 |
| Jinan Aochen Chem | China national standards | MT | 1548.1 | USD | 20250930 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1083.67 | USD | 20250930 |
| Shandong Qiangsen Chem | China national standards | MT | 1252.55 | USD | 20250930 |
| Shandong Daoqin Chem | China national standards | MT | 1266.62 | USD | 20250930 |
| Shandong Henrui Chem | China national standards | MT | 1083.67 | USD | 20250930 |
| Shandong Henrui Chem | China national standards | MT | 1083.67 | USD | 20250930 |
| Sinopec | China national standards | MT | 1083.67 | USD | 20250930 |
| Shandong Henrui Chem | Polycarbonate Grade | MT | 1083.67 | USD | 20250930 |
| Shandong Tongzhou Chem | China national standards | MT | 1407.36 | USD | 20250930 |