Abstract
This study investigates the international expansion of China’s refrigeration industry by examining the combined effects of policy support, infrastructure development, human resource capabilities, and technological innovation. Using a quantitative correlational design, data were gathered from 240 managers across 40 export-oriented refrigeration companies in Qingdao, China. The research explored how these internal support systems influence overseas trade outcomes, measured through export volume and the number of factories established abroad. Results revealed that while the overall support system—especially infrastructure and policy—was rated highly by respondents, its direct correlation with trade expansion outcomes was statistically insignificant. However, strong internal synergies were observed among the four support dimensions, particularly between policy and infrastructure, and between human resources and technological support. These findings highlight a disconnect between robust internal supports and their transformation into measurable export gains. The study concludes that Chinese refrigeration firms must refine the conversion efficiency of these supports and pursue localized strategies to enhance global competitiveness. Insights from this research offer practical guidance for policymakers and industry stakeholders aiming to optimize support mechanisms for high-quality internationalization.