GQSP Vietnam, funded by Switzerland through the State Secretariat for Economic Affairs (SECO), has been working with partners to build a reliable testing services to boost export of mangoes in Mekong Delta. Two testing labs have selected as model to receive intense training to increase accuracy. The most key pesticide residue laboratory managers and their analysts now have an enhanced appreciation of modern approaches to internal quality control, implementing principles and practice of sampling, interpretation of pesticide residue analytical results, following complete set of standards of European Plant Protection Organisation.