Anas al-Fiqqi's conviction on Wednesday is the latest by an Egyptian court of former regime figures.
Those already convicted and sentenced include the former interior and tourism ministers, as well as former ruling party stalwart and steel magnate Ahmed Ezz.
Former state television chief, Osama el-Sheikh, was sentenced to five years in the same case as al-Fiqqi's.
Mubarak himself is on trial on charges that he ordered the use of deadly force against protesters in the 18-day uprising that toppled him in February. His two sons, businessman Alaa and one-time heir apparent Gamal, are also on trial on corruption charges.
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