| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuanhe Chem | China national standards | MT | 225.75 | USD | 20251122 |
| Henan Kaijie Water | China national standards | MT | 211.64 | USD | 20251122 |
| Anhui Haozhan Tech | China national standards | MT | 204.59 | USD | 20251122 |
| Henan Huiyihai | China national standards | MT | 176.37 | USD | 20251122 |
| Henan Sendi EnvTech | China national standards | MT | 194.71 | USD | 20251122 |
| Hubei Shuanghuan Tech | China national standards | MT | 232.8 | USD | 20251122 |
| Sichuan Hebang Bio | China national standards | MT | 232.8 | USD | 20251122 |
| Pingxiang Lixin BioTech | China national standards | MT | 190.48 | USD | 20251121 |
| Hubei Shuanghuan Tech | China national standards | MT | 190.48 | USD | 20251121 |
| Pingxiang Lixin BioTech | China national standards | MT | 183.42 | USD | 20251121 |