As of mid-2026, only 16 of 54 African states have launched national AI strategies, while the European Union, Singapore, and Brazil have operationalised or near-finalised binding risk-based regulatory frameworks. This article analyses the structural divergence in global AI governance architectures, examines Nigeria's emerging high-risk licensing regime as Africa's most advanced statutory response, and evaluates the investment and compliance implications for businesses operating across jurisdictions of asymmetric regulatory intensity. Using comparative regulatory analysis, the article argues that the 2025-2026 window is decisive: delay in African statutory action increases compliance-cost importation and reduces regulatory sovereignty for a generation.