This report details the research methodology employed in a study focusing on the sustainability of lean and agile production processes, particularly within the milling industry. The study utilizes an interpretivist approach, employing a single case study design to explore real-world applications and challenges. Data collection methods include semi-structured interviews with various stakeholders, including executive committee members and senior management, to gather diverse perspectives. Thematic analysis is used to analyze the collected data, identifying key themes related to challenges, external factors, and internal opportunities. The report also addresses data validity and reliability concerns, ensuring the robustness of the research findings. The research aims to provide insights into the practical implementation of sustainable practices in the milling sector, considering both lean and agile principles.