Since 2012 Deutsche Welthungerhilfe e.V has collaborated with EMAS International e.V on the introduction of appropriate low-cost WASH technologies to Sierra Leone.  The concept of water self-supply which stands for improvement to households or community water supply through user investment in water treatment, supply construction, and upgrading, and rainwater harvesting. As a continuation after the end of funding for the SLE 1026 project, which saw the construction of over 350 EMAS drilled wells on Bonthe Island,  the WASH Technology Training Centre (WTTC) constructed in Crossing, was transformed into a social business company called Water and Sanitation Promotion (WaSAP) Company. The agreement for setting up the WaSAP Company is between Deutsche Welthungrehilfe e.V (WHH) and EMAS-International e.V (EMAS). However, there is an option for EMAS Trained Technicians in Sierra Leone to join whenever they can form themselves into a formidable group. The objective is to strengthen the promotion of low-cost EMAS water (manual drilled wells, storage, and treatment), hygiene and sanitation facilities, and hygiene and sanitation awareness creation via sanitation marketing to contribute to the SDGs. On the 19th of July 2019, the WHH Supervisory Board approved the establishment of the WaSAP Company as a social business in Sierra Leone. Against this decision, WHH contributed 50%, EMAS contributed a 50% stake in the company. The WaSAP Company is registered in Sierra Leone on the 6th of February 2020.