Plant Health Care plc announced the registration approval of Harpin ab for use as a seed treatment in Argentina. The regulatory process in Argentina for agricultural products involves detailed review and approval by Senasa, the Country's National Food Safety and Quality Service, which classified Harpin ab as a biostimulant organic-chemical fertilizer. This confirms the Argentinian government's commitment to promoting cost effective, sustainable and safe products. Harpin ab works by triggering the plant's own self defense systems, leading to a robust physiological response, in a manner similar to vaccinations in humans. The plant responds with improved crop quality, nutrient use efficiency, tolerance to abiotic stress and ultimately, increased yield. Being a biological product, Harpin aß has a very favorable human and environmental safety profile.