| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 763.15 | USD | 20251201 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 749.02 | USD | 20251201 |
| Shijiazhuang Bailong Chemical Co., Ltd. | China national standards | MT | 847.95 | USD | 20251201 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 847.95 | USD | 20251201 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 749.02 | USD | 20251201 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 699.26 | USD | 20251130 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 699.26 | USD | 20251130 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 706.32 | USD | 20251130 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 699.26 | USD | 20251130 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 699.26 | USD | 20251130 |