Coffee Beans

Coffee Beans

Jerome Ming/Bloomberg

The adoption of certified coffee in Vietnam comes as bean prices slumped 35 percent from a March high to 29,600 dong ($1.40) a kilogram on Nov. 7, the lowest since October 2010 and threatening farmers’ income, data from the Dak Lak Trade & Tourism Center show. The price was 32,400 dong on Nov. 22.