One of the most critical challenges for modern companies is ensuring corporate sustainability. Furthermore, corporate competitiveness no longer hinged on the competitiveness of individual companies, but rather on the competitiveness of their entire supply chain. Sustainable supply chain management(SSCM) was a management strategy that simultaneously achieves these two goals. This study proposed blockchain technology as an information technology for achieving SSCM. Furthermore, we examined how blockchain technology impacts the activities of companies that have adopted it. At the same time, we examined how blockchain technology impacts corporate environmental performance. To validate the proposed research model, a survey was conducted among mid-sized companies. The results of the data analysis was as follows: Among SSCM activities, environmental and economic SSCM activities had a positive impact on the adoption of blockchain technology. Furthermore, the integration of SSCM also had a positive impact on the adoption of blockchain technology. The adoption of blockchain technology was found to have a positive impact on corporate environmental performance.