Group 1: Financial Performance - The company's Q4 revenue significantly increased compared to Q3, primarily due to the recognition of revenue from membrane separation engineering projects concentrated in Q4 [1] Group 2: Production and Operations - The company has its headquarters and production base in Guiyang, with a marketing center in Beijing responsible for overseas markets and northern region distributor management [1] - The company has reserved expansion space in its existing production base and is capable of quickly initiating new production line construction based on market demand [6] Group 3: Product Applications - The company's membrane products are widely used in various industries, including food and beverage, medical pharmaceuticals, municipal water treatment, industrial high-purity water, boiler make-up water, seawater desalination, ultra-pure water for electronics, wastewater treatment and reuse, high-salinity wastewater zero discharge, material concentration and purification, and new energy [2] - The company has achieved significant technological advantages in the industrial high-purity water preparation and material concentration and purification sectors, with its products being at the domestic leading and internationally advanced levels [3] - In the semiconductor ultra-pure water sector, the company is in the early stages of domestic material substitution and is actively collaborating with application enterprises to accelerate the localization process [4] Group 4: Supply Chain and Raw Materials - The company is actively promoting the localization of raw materials and implementing a diversified procurement strategy, maintaining normal cooperation with existing imported material suppliers and establishing a complete emergency plan to ensure supply chain security [5] Group 5: Trade Policies - The company continuously monitors changes in international trade policies and actively implements national trade policies, with the impact of tariff countermeasures depending on various factors, such as duration [7]