Update: December, 17/2020 - 07:54 | Representatives from Lenger Seafoods Vietnam Co receive the Aquaculture Stewardship Council (ASC) certificate. VNA/VNS Photo Văn Đạt NAM ĐỊNH Hard clams from the northern province of Nam Định have become the first in the world to be presented with the Aquaculture Stewardship Council (ASC) certificate. The Ministry of Agriculture and Rural Development (MARD) and the provincial People’s Committee held a ceremony in Nam Định on Tuesday to announce the honour. The clams are raised in a 500ha farm in Nam Định Commune, Nghĩa Hưng District, Nam Định Province, with an annual output of 10,000 tonnes.