The supply chain system is the relationship between the parties from the vertical structure to the horizontal structure in the system of a project being implemented. In the supply chain system, there may be uncertainties that pose risks. Construction project risk management needs to be implemented in the supply chain system to determine the success and objectives of project procurement. Thus, the purpose of this research is to determine the risks that occur in the supply chain system in the Makassar Trans Studio Mall upgrade project. Data collection was carried out by direct observation in the field, interviews, and distributing questionnaires to be filled out by the parties to the project according to their respective work experiences. Respondents amounted to 13 people. Data analysis for this study used the Likert scale method using the severity index (SI) formula. From the results of this study after collecting data, it can be concluded that there are 22 risk factors identified. These risks occur with various types of risks, namely 2 risks that are categorized as high, 19 risks that are categorized as moderate, and 1 risk that is categorized as low.