With the accession of the Republic of Croatia to the European Union, sustainability in business becomes increasingly important, but also crucial for the further development of the economy and business operations. Apropos of regulatory importance, special attention is paid to sustainable business by various stakeholders and investors, i.e. shareholders. The reason for the above can be seen in the fact that business is reflected not only through the lens of various performance indicators coherent with financial indicators, but also in the issue of business reduced to non-financial indicators necessary for the continuation of non-volatile business (human capital, production processes & technologies, organizational culture, care for the environment, etc.). The concept of sustainable business, although with a rich history, more concretely begins in 1987. when it was universalized in the report Our Common Future (Brundtland, 1987.) and it experienced constant changes and modifications, especially in the last decade when the importance of the concept grew due to alarming data practically related to the survival of human species, but it also got redirected as a competitive advantage of the company. Therefore, the author of this study will create a unique framework that enables the analysis of a company's operations sustainability and the analysis of the process of adaptation to the sustainability of the company NEXE d.d. as a representative of the construction material industry in the Republic of Croatia. The study is primarily based on qualitative data obtained through collected international literature of high credibility, academic articles and other complementary sources and official documents of the company NEXE d.d..