The United States has asked China not to implement its new cyber security law over concerns it could damage global trade in services, a US document published by the World Trade Organization showed on Tuesday. China ushered in a tough new cyber security law in June, following years of fierce debate around the move that many foreign business groups fear will hit their ability to operate in the country. The law requires local and overseas firms to submit to security checks and store user data within the country. The United States, in a document submitted for debate at the WTO Services Council, said if China’s new rules enter into full force in their current form, as expected by the end of 2018, they could impact cross-border services supplied through a commercial presence abroad, Reuters reports. “China’s measures would disrupt, deter, and in many cases, prohibit cross-border transfers of information that are routine in the ordinary course of business,” it said.