The National Sanitation and Environment Fair (Fenasan) and the AESabesp Technical Meeting combine to form the largest environmental sanitation event in the Americas. The event is organized by AESabesp (Association of Sabesp Engineers). Admission is free, and the event focuses on solid waste management, recycling, public sanitation, urban sanitation, and sustainable energy generation. Together, these events expand networking and business opportunities for the more than 37,000 expected visitors.