Global competition exerts pressure on companies to be innovative, which confronts them to improve or maintain their market position. Extensions of the product portfolio are frequently used in this context. By offering new products, it is possible to increase the own product variety and expand into a new sales market. In this thesis, this expansion is examined, and steps of market development are treated. Therefore, the theory of market investigation methods, e.g. portfolio- and SWOT analysis, and the canvas model as a basis for creating a business model are presented. The core of the work describes the situation of a metal powder producing company, which wants to expand its product range by marketing nanopowders. In this work, information about this niche market is collected, a portfolio market analysis characterises it, and an opportunity-thread (OT) analysis evaluates the companies’ chances and risks. For the fulfilment of the processing of this topic, this thesis includes methods for the production, preparation and collection of nanometal powders. Through this work, the business field of nanopowder distribution is captured and classified across Europe. The findings from the portfolio analysis, combined with the threats and opportunities from the OT analysis, serve as the cornerstone for creating a business plan. A selection of four building blocks of the canvas model simplifies the prioritisation of the segments to be considered, thus realising the final recommendations for action.