Abstract
This study examined the effect of adopting sustainable supply chain management (SSCM) practices on food companies' sustainable performance and food quality assurance in Bangkok, Thailand. Primary data were collected through questionnaires administered to 126 food companies in Bangkok. The Seemingly Unrelated Regression (SUR) was used to examine the effect of internal and external sustainable supply chain management practices on sustainable performances. The Ordinary Least Squares (OLS) was employed to examine the effect of sustainable performances on the food company's quality assurance. The study's empirical result revealed that internal and external SSCM techniques positively influence the companies' financial, environmental, and social performances. The sustainable performance indicators (i.e. environmental, financial, and social) positively influence quality assurance. This study provides recommendations for adopting SSCM practices by food companies in Thailand.