Abstract
This research examines the management strategies of a national fund portfolio company in a changing economic environment, focusing on the implementation of an executive leadership succession system and leadership competency model. The study aims to develop a systematic approach to asset management to improve operational efficiency and investment attractiveness. In this context, national funds apply three management approaches-monitoring, strategic management, and operational management-according to the maturity level of the company, to optimise engagement and minimise risk.The results showed that the application of the proposed management model improved the productivity and sustainability of portfolio companies. Strengthening governance standards, streamlining business processes, and proactively integrating risk management were shown to improve transparency and accountability. Nonetheless, challenges such as the lack of supporting infrastructure in the implementation of sustainability (ESG) principles remain a major obstacle.The implications of this research include recommendations for practitioners and academics in asset management strategies that are adaptive to economic dynamics. With a systematic approach and technology integration, portfolio companies can accelerate business transformation and support national economic diversification.