| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Baoxin Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.17 | USD | 20251022 |
| Sichuan Hebang Biotechnology Co., Ltd. | China national standards | MT | 232.55 | USD | 20251022 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 190.26 | USD | 20251022 |
| Henan Baiquan Pharmaceutical Co., Ltd. | China national standards | MT | 176.17 | USD | 20251022 |
| Henan Junma Chemical Co., Ltd. | China national standards | MT | 190.33 | USD | 20251021 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 211.48 | USD | 20251021 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.18 | USD | 20251021 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.43 | USD | 20251021 |
| Henan Baiquan Pharmaceutical Co., Ltd. | China national standards | MT | 190.33 | USD | 20251021 |
| Henan Baoxin Environmental Protection Technology Co., Ltd. | China national standards | MT | 190.33 | USD | 20251021 |