Current research on multinational R&D assumes that main R&D is based in the home country and views overseas R&D as additional to the home base. However, case studies in China have found that the base itself is also internationalized. Besides home-based-augmenting, home-based-exploiting, and home-based-replacing discussed in the literature, we have identified new types of host-based overseas R&D. Two of these are the host-based technology advancer, which focuses on original component innovation, and the host-based system owner, which focuses on system innovation. Both respond to local market opportunities. In addition, multinationals establish host-based local integrators to coordinate their R&D centers under different firm divisions. These findings suggest four topics for future research.