Iran was defeated against Argentina 5-4 in Pool B in its opening match and defeated the US 8-3 and Australia 6-4 in its following matches.
Team Melli is scheduled to play the Czech Republic on Thursday.
Iran sits in second place in the pool with seven points.
The competition started in Pretoria on February 5 and will run until February 11.
The top-four teams from each group will advance to the quarter-finals.