Subject and Keywords:
The problem of sustainability is gaining more and more importance. It is because of the increasing pressure from the market and the public administration to improve the environmental and social conditions for all. The issue of sustainability is implemented into business and in particular into supply chains as an important element of management. Despite many works regard to the concept of sustainable supply chain there is still a lack of the complex models that will help to understand and identify the current position of the supply chain and give the feedback which actions are expected to be improve to achieve the next level of maturity. The main aim of the paper is an attempt to conceptualize the problem of maturity in supply chain in the context of sustainability. The improved conceptual model will be introduced.