Despite increasing research on reverse knowledge transfer (RKT) from subsidiaries to headquarters (HQs), there is no academic consensus on the primary determinants influencing RKT. By incorporating four different facets (i.e., absorption, sharing, implanting, and application of market knowledge) of the phenomenon, we draw new insights into RKT. Through empirically testing the phenomenon in the Korean context, we reveal that market knowledge absorption by subsidiaries is a critical component that influences the knowledge integration mechanisms (KIMs) within MNC networks. Furthermore, KIMs within MNC networks are primary keys for absorptive capacity (AC) of HQs and knowledge relevance between HQs and subsidiaries. Our results extend our understanding of RKT, while also offering useful implications for MNCs that intend to establish subsidiaries in foreign markets. Copyright (c) 2016 ASAC. Published by John Wiley & Sons, Ltd.