The Ghana-born player is currently a member of Kyrgyzstan’s national team and has made 23 caps for the Asian team since 2023.
Esteghlal was looking to sign him in summer, but the Uzbek club didn’t allow him to leave the team.
Now, Kojo has arrived in Tehran to undergo medical examination.
Esteghlal, headed by Pitso Mosimane, sits 10th in the 16-team league of Iran.