| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.72 | USD | 20251204 |
| Shandong Haihua Co., Ltd. | China national standards | MT | 226.2 | 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 | 233.27 | USD | 20251204 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 200.75 | USD | 20251204 |
| Shandong Haihua Co., Ltd. | China national standards | MT | 254.48 | USD | 20251204 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 240.34 | 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 Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.76 | USD | 20251204 |