| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 206.41 | USD | 20251204 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 155.51 | USD | 20251204 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 176.72 | USD | 20251204 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 202.17 | USD | 20251204 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 169.65 | USD | 20251204 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 268.62 | USD | 20251204 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 183.79 | USD | 20251204 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.48 | USD | 20251204 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 202.17 | USD | 20251204 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 261.55 | USD | 20251204 |