Yasuko went to Kenya in March 2007 with another member of JSCA to participate in TICAD (Tokyo International Conference on African Development) Civil Society Forum held at UN office in Nairobi. She visited Solar Cookers International East Africa Office in Nairobi and participated in an event demonstrating various solar cookers we brought from Japan with Faustine Odaba. She traveled to Tanzania in January 2008 with another JSCA member to promote solar cooking in rural villages on the southern plateau.