Core Viewpoint - Xizi Clean Energy (002534) announced on August 7 that its subsidiary, Hangzhou Hangguo General Equipment Co., Ltd., specializes in the design and manufacturing of boiler auxiliary machines and various specialized equipment, including five major product series [1] Group 1: Company Overview - The subsidiary has been involved in tunnel excavation since 2005 and has successfully produced various models of shield tunneling machines for domestic and international urban tunnel construction projects [1] - The first shield tunneling machine, "Xizi," was developed in 2008 and has been used in projects such as the Nanjing and Suzhou metro tunnels [1] - The products have been utilized in numerous projects, including the Singapore power tunnel, Singapore metro projects, Shanghai Line 17, and Hangzhou Line 5, among others [1] Group 2: Market Potential - The shield tunneling machine market is projected to exceed 100 billion [1] - The company is actively engaging with market demands to secure order opportunities as the Yaxia project is still in the early stages of construction [1]

（文章来源：证券日报） 证券日报网讯西子洁能7月31日在互动平台回答投资者提问时表示，公司控股子公司杭州杭锅通用设备 有限公司主要从事锅炉辅机及各类专用设备和重化装备的设计、制造，具有燃机旁路系统、锅炉辅机系 列、垃圾焚烧炉炉排底座系列、盾构机系列、电极锅炉等五大系列产品。该子公司自2005年开始涉足隧 道掘进业务，至今已成功生产、制造各类型号的盾构机，用于国内外城市隧道工程建设施工。2008年， 首台盾构机"西子号"研制成功，用于南京和苏州地铁隧道的挖掘工程。之后该产品应用于新加坡电力隧 道、新加坡地铁项目、上海17号线、杭州5号线，金义东城际轨道等国内外市场诸多项目。 ...