GUMASA, Glan, Sarangani (October 3, 2011) – Vice Mayor Vivien Yap speaks before hundreds of delegates of the 13th National Mango Congress and 26 mango farmer-graduates (front row) from the Farmers’ Field School during the closing ceremonies of the congress on September 30. The congress was held at the world-class resort of Isla Jardin del Mar in Gumasa. (Russel Delvo/SARANGANI INFORMATION OFFICE)