The series of International Conferences on Microreaction Technology (IMRET) started in 1997 with IMRET 1 in Frankfurt am Main, Germany. Since then ten IMRET conferences have been organized alternately in Europe by DECHEMA and in North America by AIChE and for the first time in 2010 in Asia by the Society of Chemical Engineers, Japan (SCEJ). IMRET12 will cover the following topics: Flow chemistry Material synthesis Energy and thermal systems Fine & commodity chemical synthesis Food, personal care, and other applications Process intensification Fundamentals - mixing, mass & heat transfer... Process data acquisition, kinetics and chemical analysis Miniplants - process design & control Strategic activities & large projects These topics illustrate the cross fertilization between knowledge driven activities and market push applications. Beside well recognize applications of Micro-Process Technology for material synthesis, energy, fine & commodity chemicals, food and personal care, we would like to encourage those still trying to push-back the frontiers of knowledge in mixing, micro-fluidic, kinetics, etc. to attend. Yet, with IMRET12, we hope to further contribute to building a bridge between the micro-process technology communities with the fast growing field of “flow synthesis”. The field of process intensification is also very mature and this IMRET12 will emphasize the research aiming at coupling MPT with new mode of activation thus involving photochemistry, sono-chemistry and the use of micro-waves or plasma to achieve PI. Last but not least, IMRET12 will also be the place to grape an overview on ongoing large projects (National, EU funded, etc.) dealing with compact plants activities and other strategic R&D related to micro-process technology.