This study presents a conceptual model to investigate the impacts of business technology management (BTM) capability and CIO role effectiveness on firms’ information technology assimilation. A large-scale field survey was used as the methodology for this research. Global logistic enterprises of Taiwan and China were randomly selected for constituting a representative sample in this study. Using the partial least squares (PLS) method, the causal relationships among BTM capability, CIO role effectiveness, and firms’ IT assimilation were verified. Also, the contribution of business technology and business management competencies on CIO role effectiveness was verified. The results of this study can provide practical implications for how firms can align, synchronize and converge IT and business management, thus ensuring better execution, risk control, and profitability.