| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem | China national standards | MT | 194.21 | USD | 20250925 |
| Guangdong Huihao | China national standards | MT | 211.1 | USD | 20250925 |
| Hubei 789 Chem | China national standards | MT | 253.32 | USD | 20250925 |
| Hubei 789 Chem | China national standards | MT | 253.32 | USD | 20250925 |
| Jinan Jinrihe Chem | China national standards | MT | 168.88 | USD | 20250925 |
| Henan Sendi EnvTech | China national standards | MT | 194.21 | USD | 20250925 |
| Henan Sendi EnvTech | China national standards | MT | 201.25 | USD | 20250925 |
| Shanghai Guoke | China national standards | MT | 260.35 | USD | 20250925 |
| Pingxiang Lixin BioTech | China national standards | MT | 197.02 | USD | 20250925 |
| Pingxiang Lixin BioTech | China national standards | MT | 182.95 | USD | 20250925 |