| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Haihua Co., Ltd. | China national standards | MT | 190.75 | USD | 20251209 |
| Shandong Haihua Co., Ltd. | China national standards | MT | 190.75 | USD | 20251209 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 209.12 | USD | 20251209 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 209.12 | USD | 20251209 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.69 | USD | 20251209 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 209.12 | USD | 20251209 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 169.56 | USD | 20251209 |
| Henan Junma Chemical Co., Ltd. | China national standards | MT | 176.62 | USD | 20251209 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.67 | USD | 20251209 |
| Anhui Haozhan Environmental Protection Technology Co., Ltd. | China national standards | MT | 204.88 | USD | 20251209 |