| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Xingdate Bio | Polyester Grade | MT | 763.15 | USD | 20251201 |
| Sinopec | China national standards | MT | 635.96 | USD | 20251201 |
| Shandong Zhenkun | China national standards | MT | 607.7 | USD | 20251201 |
| Shandong Fusheng | China national standards | MT | 508.77 | USD | 20251201 |
| BASF YPC | China national standards | MT | 607.7 | USD | 20251201 |
| Shandong Rongxin | Polyester Resin Grade | MT | 537.03 | USD | 20251201 |
| Qingdao Shengze Chem | China national standards | MT | 529.97 | USD | 20251201 |
| Shandong Jinwen Chem | China national standards | MT | 508.77 | USD | 20251201 |
| BASF YPC | China national standards | MT | 678.36 | USD | 20251201 |
| Lihuayi Weiyuan Chem | China national standards | MT | 579.43 | USD | 20251201 |