This working paper examines the transmission of global supply-chain disruptions to inflation in small open economies, focusing on the joint roles of trade vulnerability, shock volatility, and monetary policy stance. Using panel local projections for ASEAN-5 economies, the paper finds that inflation responses to global supply-chain pressure shocks display a delayed, hump-shaped profile. The point estimates suggest stronger responses in economies with greater trade vulnerability and more persistent effects during high-volatility episodes, while trade openness on its own does not systematically amplify pass-through.