L-R: Gladys Olajumoke Simplice, president/chairman of council, Chartered Institute of Taxation of Nigeria (CITN); David Ajibola Olorunleke, doyen of taxation; Babajide Sanwo-Olu, governor, Lagos State, and Nasir El-Rufai, governor, Kaduna State/keynote speaker, at the opening ceremony of the 22nd annual tax conference, with the theme ‘Taxation and Economic Competitiveness: Imperatives for National Development’ in Lagos, yesterday. Pic by Olawale Amoo