| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Haihua Group Co., Ltd. | China national standards | MT | 168.88 | USD | 20251005 |
| Henan Kaijie Water Treatment Co., Ltd. | China national standards | MT | 211.1 | USD | 20251004 |
| Henan Kaijie Water Treatment Co., Ltd. | China national standards | MT | 211.1 | USD | 20251004 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 204.07 | USD | 20251004 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 182.96 | USD | 20251004 |
| Henan Baoxin Environmental Protection Technology Co., Ltd. | China national standards | MT | 211.1 | USD | 20251004 |
| Shandong Haihua Group Co., Ltd. | Food Grade | MT | 267.4 | USD | 20251004 |
| Shandong Haihua Group Co., Ltd. | Food Grade | MT | 182.96 | USD | 20251004 |
| Henan Kaijie Water Treatment Co., Ltd. | China national standards | MT | 211.1 | USD | 20251003 |
| Henan Kaijie Water Treatment Co., Ltd. | China national standards | MT | 211.1 | USD | 20251003 |