Regional trading arrangements like RCEP and TPP are expected to support the emerging international production network (IPN). It is claimed that there is a positive relationship between production network and trade integration (Kimura et al, 20076; Ando and Kimura,2005). However the relationship can work both ways. While deep trade agreements can stimulate production network by facilitating trade among potential members of supply chain, countries involved in international production fragmentation are willing to sign deeper trade agreements so as to formalise their role as providers of intermediate goods and services.