This master thesis ist the basis for the draft of the sustainability report for the Himmelberger Zeughammerwerk Leonhard Müller+Söhne GmbH company. The aim of the thesis is to create the conception of the sustainability report for this company. The thesis starts with the fundamentals of sustainability and continues with the theoretical basics of assesments. The author explains further the basically composition and the guidelines for sustainability reports. The following chapters explain the configuration of the sustainability report for the Himmelberger Zeughammerwerk Leonhard Müller+Söhne GmbH and the calculation of the CO2 emissions when chinese and carinthian axes were transported to their sales markets. This work ends with a conclusion. This conclusion summarize the cognitions and the results of this work.