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| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.06 | USD | 20250811 | 
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.09 | USD | 20250811 | 
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.09 | USD | 20250811 | 
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.18 | USD | 20250810 | 
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.18 | USD | 20250810 | 
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.18 | USD | 20250809 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.12 | USD | 20250809 | 
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.18 | USD | 20250809 | 
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.18 | USD | 20250808 | 
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.17 | USD | 20250808 |