This paper presents work-in-progress towards the development of an intelligent mobile agent-based e-marketplace system called InterMarket. InterMarket aims at enabling mobile access and automated trading in e-marketplaces based on integration of mobile agents and intelligent decision-making agents offered as an add-on component to a commercial e-marketplace platform. The paper overviews the proposed solution and approach for InterMarket, and relates it to the existing research on mobile e-commerce agents and intelligent agent-mediated e-commerce.