The 82-year-old Iwuanyanwu died in Abuja on Thursday after battling with an illness.
The statement read: "The Iwuanyanwu Family of Umuohii Atta, in Ikeduru Local Government Area of Imo State, announces the demise of our Patriarch, Engr Chief Emmanuel Chukwuemeka Iwuanyanwu-Ahaejiagamba Ndigbo," the statement read.
Chief Iwuanyanwu was supposed to mark his 82nd birthday on September 4th, 2024.
Chief Iwuanyanwu, before his death, was President General of Ohanaeze Nd'Igbo Worldwide and President of Owerri Peoples Assembly.
He is survived by many children, grandchildren and his wife, Lady Princess Frances Iwuanyanwu.