A remarkable expansion in production networks has been in solid progress in the global economy. Theprocess of expansion has been accelerated through advance in information and transportationtechnology in addition to the ongoing trend in globalization. In addition, speedily improving productiontechnology of industries enable the capacity to further breakdown their value chains into smallerproportions. Said production sharing helps enhance efficiency and reduce costs. As East Asianeconomies are in diverse phases of economic development, the relevant production networks would bejoined by both developed and emerging economies in the region. However, certain economies mightpossess the most critical or irreplaceable phase of the production networks. It means that someunexpected and significant disruptions could stop the networks from functioning regularly. It isnoteworthy that the production networks and supply chains have been driven by international tradeand associated economic activities. For the purpose of risk sharing and cost efficiency, it is necessaryto explore means at both regional level and economy level to strengthen or improve productionnetworks at the regional level, whereas major players that formulate the regional networks includeChina, Japan, Korea, and Taiwan.