This study examines Taiwanese investment in Mainland China as it is an important part of cross-strait economic cooperation. Using sample data from Taiwanese-listed electronic information enterprises in Mainland China (1990-2016), this study combines ArcGIS spatial visualization and case analysis to investigate their value chain organization models and spatiotemporal evolution regularity. The results show that the value chain of the electronic information industry for Taiwanese investments in Mainland China has three models: vertical integration, modularization in production sharing, and production extension. Vertical integration is the main production organization model of these Taiwanese listed electronic information enterprises, expanding from single production to the entire manufacturing value chain, followed by sales, and finally R&D. This model is still in use in the Western Taiwan Straits Economic Zone, whereas the other four Taiwanese investment agglomerations, namely the Bohai Economic Rim, Yangtze River Delta, Pearl River Delta, and Western Delta Economic Circle, began to expand to both ends of the production link, particularly to the sales link. High-value -added enterprises adopting production sharing models began to show a trend of expansion to inland cities, and enterprises adopting the manufacturing-sales model (a production expansion model) had the widest distribution. Finally, at the city level, the value chain fragmentation structure of Taiwanese and developed countries' cross-border (multinational) enterprises in Mainland China were consistent, that is, they matched the Chinese city hierarchy; at the regional level, however, the Western Delta Economic Circle pioneered to become a hub for Taiwanese electronic to information enterprises set up their R&D and sales links in Mainland China. Investigating chain-alike spatiotemporal expansion of Taiwanese investment in Mainland China is important for the integration and development of the value chain, production network, and enterprise spatial organization theories.
