The Material Separation Nanofiltration Membrane segmentation by application isolates five principal end‑uses that collectively define market demand. Water treatment—encompassing municipal reuse, industrial effluent polishing, and desalination pre‑treatment—accounts for the largest share, driven by stringent regulatory limits on contaminants and the cost‑effectiveness of nanofiltration relative to reverse osmosis. Food & beverage applications focus on sugar concentration, dairy whey demineralization, and juice clarification, where membrane selectivity improves product yield while preserving sensory qualities. In the pharmaceutical sector, nanofiltration supports active pharmaceutical ingredient (API) purification and solvent recovery, contributing to tighter quality control and reduced solvent waste. Chemical processing leverages membranes for catalyst recovery, solvent‑free synthesis, and separation of low‑molecular‑weight organics, aligning with industry moves toward greener processes. Finally, electronics utilizes nanofiltration for ultra‑pure water generation and semiconductor wafer cleaning, where impurity thresholds are exceptionally low. The relative weight of each segment is reflected in the accompanying pie‑chart, illustrating their proportional impact on overall market size.