Group 1 - The core point of the news is that multiple companies, including Lingzhi Equipment Co., Ltd. and Jiangsu Lingzhi Environmental Engineering Co., Ltd., have obtained a patent for a magnetic mixed sewage treatment system and its processing method, indicating innovation in wastewater treatment technology [1][2][3] Group 2 - Lingzhi Equipment Co., Ltd. was established in 1998 in Wuxi, primarily engaged in the rubber and plastic products industry, with a registered capital of 1,171.6388 million RMB. The company has invested in 34 enterprises and participated in 333 bidding projects, holding 72 trademark records and 426 patent records [1] - Jiangsu Lingzhi Environmental Engineering Co., Ltd. was founded in 2008 in Wuxi, focusing on civil engineering construction, with a registered capital of 205 million RMB. The company has invested in 10 enterprises and participated in 186 bidding projects, holding 1 trademark record and 273 patent records [1] - Zhongling Water Environment Equipment (Yunnan) Co., Ltd. was established in 2022 in Qujing, primarily engaged in specialized equipment manufacturing, with a registered capital of 50 million RMB. The company has participated in 8 bidding projects and holds 56 patent records [2] - Lingzhi Environmental (Linquan) Co., Ltd. was founded in 2017 in Fuyang, focusing on water production and supply, with a registered capital of 50 million RMB. The company has invested in 2 enterprises and participated in 9 bidding projects, holding 128 patent records [2]