Vietnam, the world's top cashew nut exporter, has imported a record 769,000 tonnes of the raw nuts in 2014 for processing for export, a surge of 59.3 percent from a year ago, the Vietnam News reported, quoting the Vietnam Cashew Association. Of the imported volume, 106,700 tonnes came from Nigeria, or nearly 90 percent of the African nation's annual output, the report said. Vietnam's cashew nut exports in 2014 jumped 16.9 percent to 305,000 tonnes from the previous year, government data showed.