钱江水利：公司持有天堂硅谷27.9%的股权

Group 1 - The company, Qianjiang Water Resources, primarily engages in water production and supply, along with wastewater treatment and municipal pipeline installation [1] - The company holds a 27.9% stake in Tiantang Silicon Valley, sharing profits according to its equity proportion [1] - Tiantang Silicon Valley does not directly participate in investments related to aerospace enterprises [1]