This study explores the evolution of Electrical and Electronic (E&E) industry within ASEAN between 2019 and 2023, emphasising its domestic interdependencies and regional production structures. Using input-output model of average propagation length (APL), the analysis categorises ASEAN economies into three production network clusters, namely, peripheral, intermediate, and advanced. The peripheral group, comprising Cambodia and Laos, is characterised by limited industrial capacity and short supply chains, reflecting constraints in skilled labour, capital availability, and infrastructure that hinder deeper industrial integration. The intermediate group, represented by Indonesia, Thailand, and Vietnam, displays longer APLs that indicate expanding but incomplete supply chain integration. These economies demonstrate concentration in upstream assembly activities yet remain weak in downstream distribution and innovation functions. The advanced group, led by Malaysia and Singapore, exhibits high network embeddedness, robust backward and forward linkages, and greater infrastructural and institutional support, functioning as coordination and innovation hubs within the regional E&E production system. The findings underscore the significance of regional collaboration, logistics optimisation, and technological upgrading to strengthen intra-ASEAN linkages. Policy implications include enhancing local supplier capabilities in peripheral economies, promoting industrial diversification in intermediate economies, and consolidating innovation ecosystems in advanced economies. Overall, this study highlights the hierarchical yet interconnected nature of ASEAN's E&E production network and its pivotal role in achieving a resilient and sustainable regional industrial base.
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