| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 233.27 | USD | 20251204 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 195.1 | USD | 20251204 |
| Shandong Haihua Co., Ltd. | China national standards | MT | 226.2 | USD | 20251204 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 268.62 | USD | 20251204 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 240.34 | USD | 20251204 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.71 | USD | 20251203 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.67 | USD | 20251203 |
| Henan Baiquan Pharmaceutical Co., Ltd. | China national standards | MT | 166.78 | USD | 20251203 |
| Henan Leavit Chemical Technology Co., Ltd. | China national standards | MT | 159.71 | USD | 20251203 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 183.74 | USD | 20251203 |