Paragraph 3 (and other parts) of the complaint address the US nexus:
Since the launch of its platform in 2017, Binance has taken a calculated, phased approach to increase its United States presence despite publicly stating its purported intent to “block” or “restrict” customers located in the United States from accessing its platform. Binance’s initial phase of strategically targeting the United States focused on soliciting retail customers. In a later phase, Binance increasingly relied on personnel and vendors in the United States and actively cultivated lucrative and commercially important “VIP” customers, including institutional customers, located in the United States. All the while, Binance, Zhao, and Lim, the platform’s former Chief Compliance Officer (“CCO”), have each known that Binance’s solicitation of customers located in the United States subjected Binance to registration and regulatory requirements under U.S. law. But Binance, Zhao, and Lim have all chosen to ignore those requirements and undermined Binance’s ineffective compliance program by taking steps to help customers evade Binance’s access controls.