With the dynamics of global economy and the increasing market competitiveness, procurement becomes more relevant making subjects like supply risk, cost reduction, supplier market characteristics, strategic partnerships, among others, present in the business day life. In scenario like this, a good purchasing strategy makes the difference. Developing a purchasing strategy is complex as companies deal with a great variety of items and services, as well as diversified purchasing situations, therefore, it is required to have advanced analytical tools in order to develop efficient strategies. Based on this, several methodologies support this process such as SWOT Analysis, the Porter s Five Forces and the Purchasing Portfolio. Despite the relevance of purchasing portfolio use in strategies development, there is little knowledge regarding its practical use. This dissertation brings concepts over the purchasing portfolio, presenting a practical case study on its use for strategy development within a big mining company. This work goal is to seek literature clearance of how Purchasing Portfolio is use in practical strategy development; identifying variation needs to adapt them into real situations. Furthermore, we expect to identify if there is any new improvement opportunity for the Purchasing Portfolio used in the corporate organization studied.