Ardan was responsible, working with Tetractys Architect’s(Architect António Barreiros Ferreira) and the Dutch Office Smits van Burgst, on Electricity, Communications, Lifting and Transport Projects, since its genesis as Pavilion of the Participating Countries - which required technical dialogue with designers from EXPO 98 itself and more than fifty countries (of which we highlight, due to the complexity, the PR of China) - until the transformation as Lisbon Industrial Fair, with face-to-face monitoring of the entire construction, in a Project that lasted for more than six years.