Group 1 - The core viewpoint of the article indicates that Wharton Technology (000920) acknowledges that the domestic ultra-pure water membrane market is primarily dominated by foreign brands [1] - The company's ultra-pure water membrane business currently accounts for a small proportion of its overall operating revenue [1]

Group 1: Financial Performance - The company's profit growth in Q3 is primarily attributed to the increase in membrane business revenue, with simultaneous growth in both domestic and overseas markets, and continuous optimization of product structure, particularly in high-value products like seawater desalination membranes [2] Group 2: Project Development - The Nanjing new project is currently in the preliminary planning stage and has uncertainties associated with it [2] Group 3: Production Capacity - The existing production capacity is sufficient to meet market demand, with potential for further enhancement through equipment upgrades. The production base has reserved space for capacity expansion, ensuring it can dynamically adapt to market growth without becoming a bottleneck for the company's development [2] Group 4: Revenue Composition - The ultra-pure water membrane products currently represent a relatively low proportion of the company's overall revenue and do not constitute a core revenue source [3]