Vietnam tilapia export quantities. In 2019 Vietnam sold 11,841 tonnes of tilapia. Across 2019 alone, the interest in Vietnam tilapia (fish category) has gone down, flactuating by -6.388 per cent compared to the year 2018. Between 2017 and 2019, tilapia's exports went up by 2.29 percent earning Vietnam US$29.18m for the year 2019.