Aspect-Oriented Requirements Engineering (AORE) aims at bringing the benefits achieved by separation of concerns (e.g., improved modularity, reusability and maintainability) to requirements engineering. In order to cope with costly tasks performed during AORE such as identifying concerns and structuring requirements in different models, tool support is vital to effectively reduce the burden of performing these various tasks. This demonstration describes how the EA-Miner tool provides automated support, based on natural language processing techniques, for mining various types of concerns from a variety of early stage requirements documents. The tool is implemented as an Eclipse plug-in and enables several features such as visualizing and editing the models and generating specification documents.