China's National Development and Reform Commission has blocked Meta's $200 million acquisition of AI company Manus, citing national security concerns. The decision, announced on April 27, halts the transaction that began in December 2025. Regulators highlighted risks related to technology transfer and data security, requiring Meta to unwind the acquisition and restore Manus to its pre-acquisition state. The prohibition follows an investigation into compliance with technology export controls and foreign investment regulations. Meta must return approximately $2 billion already paid, delete all data obtained from Manus, and terminate any technology transfers. The move underscores China's strict stance on cross-border mergers involving key technologies, emphasizing the need for comprehensive security reviews.