Singapore started slowly and conceded two goals in the first 10 minutes of the game through a corner kick and a direct freekick.
Singapore regrouped after the break and pushed hard for a goal and were duly rewarded when Haikal Norasikin got his first goal of the tournament in the 71st minute.
The youngsters nearly found the equaliser in the last minute of the game but a legitimate claim for a penalty was waved off by the local referee.
Vietnam Youth Newspaper Cup
S'pore Olympic 1-2 Vietnam U21Scorer - Haikal Norasikin