The global data processing and storage industry is undergoing a structural transformation as cloud computing shifts from a differentiated, firm-specific service toward a standardized and increasingly commoditized global market. International trade theory-specifically the Heckscher-Ohlin factor proportions framework-is applied to analyze emerging patterns of specialization and comparative advantage in the provision of cloud services. Cloud output is conceptualized as a standardized data processing unit, produced under constant returns to scale using a globally uniform technology. Building on this definition, a conceptual multi-factor unit cost model is developed that integrates traditional production factors-energy, capital and digital infrastructure, and skilled labor-with non-factor costs distinctive to the digital economy, notably regulatory compliance costs and geopolitical and environmental risk premia. Comparative advantage is determined by the minimization of total structural data processing unit costs, inclusive of both factor and non-factor components. This framework explains the observed concentration of data centers in locations characterized by low-cost and reliable energy, robust connectivity infrastructure, deep pools of specialized human capital, and limited regulatory friction or systemic risk. The analysis suggests that cloud services constitute an emerging frontier of international factor-endowment trade, where classical sources of comparative advantage interact closely with institutional quality, policy choices, and risk conditions to shape global patterns of specialization.