| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Haihua Co., Ltd. | China national standards | MT | 169.5 | USD | 20251126 |
| Shandong Haihua Co., Ltd. | China national standards | MT | 254.25 | USD | 20251126 |
| Shandong Yuanhe Xinsheng Chemical Trade Co., Ltd. | China national standards | MT | 226.0 | USD | 20251126 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 183.63 | USD | 20251126 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 194.93 | USD | 20251126 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 190.69 | USD | 20251126 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 201.99 | USD | 20251126 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.43 | USD | 20251125 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.49 | USD | 20251125 |
| Henan Baoxin Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.49 | USD | 20251125 |