| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 734.58 | USD | 20251128 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 755.77 | USD | 20251128 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 748.7 | USD | 20251128 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 727.51 | USD | 20251128 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 847.59 | USD | 20251128 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.85 | USD | 20251128 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 847.59 | USD | 20251128 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.7 | USD | 20251128 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 727.51 | USD | 20251128 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 805.21 | USD | 20251128 |