Small and Medium Enterprises (SMEs) are an important contributor to the global economic growth. Nevertheless, owing to their lack of managerial capability to manage the impact of business uncertainty, they are prone to business failures. To prevent this situation, identification of risks affecting sustainability of SMEs and preparing appropriate risk mitigation strategies are important. Most of the previous supply chain risk management studies discussing the sustainability risks are focused mainly on large enterprises and fail to address this in the SMEs context. To address this research gap, this paper presents a preliminary study of the typology and categorization of supply chain sustainability risk faced by SMEs in the context of a developing country Indonesia. A preliminary survey to identify and categorize supply chain sustainability risk faced by Indonesian SMEs is accomplished by deriving sustainability risk dimensions and variables based on the triple bottom line concept. The study presents supply chain sustainability risk dimensions and variables from SMEs of various sectors. We have also identified opportunities for further study from this initial effort.