Team Melli, who had defeated Bangladesh 8-0 in Pool A, will meet Malaysia on Thursday.
The Iranian women team also lost to Kazakhstan 6-0 in Pool A. Iran had defeated the Philippines 5-0 on Monday in its first match.
The 2019 Men's Indoor Asia Cup is the eighth edition of the men's Indoor Hockey Asia Cup, the biennial international men's indoor hockey championship of Asia organized by the Asian Hockey Federation.
The competition is being held alongside the women's tournament in Chonburi, Thailand from 15 to 21 July 2019.
Iran’s men team is the defending champion having won the 2017 edition.