Building Resilient Supply Chain Partners: A Framework for Sustainable Contract Manufacturing in a South African SME

Contract manufacturing is a pivotal strategy for brand owners, yet small-to-medium enterprises (SMEs) in emerging economies struggle to evolve beyond transactional roles into sustainable strategic partners. This study addresses this gap by empirically validating and refining the Mahove–Matope Sustainable Contract Manufacturing Company Maturity Model (SCMC-MM), a novel framework designed to guide SMEs through a holistic transformation. Through a seven-month longitudinal case study grounded in design science research approach within a South African food manufacturing SME, the model was implemented and evaluated using structured assessments, in-depth interviews, and longitudinal operational data. The application catalysed a system-wide transformation, yielding significant results, including a 133% increase in revenue, ISO 22000 certification, and perfect delivery reliability. Furthermore, the study theoretically refines the framework by identifying and incorporating novel critical success factors for contract manufacturing companies, such as industrial clustering and transformational leadership. The results demonstrate that the SCMC-MM offers a practical, actionable, and scalable tool for building resilient supply chain partnerships. It provides a structured pathway for SMEs to achieve simultaneous gains in economic performance, social equity through enhanced workforce capability and ethical practices, and environmental stewardship via formalised safety, health, and environmental and risk management systems, thereby contributing directly to the United Nations Sustainable Development Goals (SDGs) 8 and 9 in emerging markets.