| Vendor | Spec | Unit | Price | Currency | Date | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.55 | USD | 20250826 | 
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 533.8 | USD | 20250826 | 
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.62 | USD | 20250826 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.58 | USD | 20250825 | 
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 534.0 | USD | 20250825 | 
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.66 | USD | 20250825 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.35 | USD | 20250823 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.35 | USD | 20250822 | 
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 123.39 | USD | 20250822 | 
| Hunan Jianghai Environmental Protection Co., Ltd. | China national standards | MT | 532.8 | USD | 20250822 |