In the contemporary digital landscape, platform-based business models have experienced meteoric rise in global prominence. However, the international ascendancy of Platform Multinational Corporations (PMNCs) is contingent upon their ability to adeptly navigate a multitude of challenges. Within this dynamic, resilience emerges as a crucial attribute, with modularity serving as a vital mechanism to foster such resilience. This resilience enables PMNCs to adapt flexibly and efficiently to diverse global markets. This research advances a conceptual framework predicated on the structure-conduct-performance (SCP) paradigm, underscoring the interplay between structural and behavioural resilience and their collective impact on the internationalization performance of the PMNCs. It posits that the synergy between the technical architecture, organization structure, and market structure underpins structural resilience. Concurrently, cultivating the alignment between structural and behavioural resilience is instrumental in harmonizing adaptability and transformability, which are essential for the sustained internationalization success of PMNCs.