It was considering eventually purchasing up to 40 percent of the chips needed for all iPhones from YMTC.
The United States last week added memory chipmaker YMTC and 30 other Chinese entities to a list of companies that U.S. officials have been unable to inspect, starting a 60 day-clock that could trigger much tougher penalties.
YMTC is being investigated by the U.S. Commerce Department over whether it violated Washington’s export controls by selling chips to blacklisted Chinese company Huawei Technologies.