A Huawei Technologies unit is shipping new Chinese-made chips for surveillance cameras in a fresh sign the Chinese technology giant is finding ways around four years of U.S. export controls, two sources briefed on the unit's efforts said.

The shipments to surveillance camera manufacturers from the company's HiSilicon chip design unit started this year, according to one of the sources and a third source familiar with the industry supply chain. One of the sources briefed on the unit said at least some of the customers were Chinese.

Hauwei also unveiled new smartphones in recent weeks that use advanced chips analysts say are domestically made. The developments indicate the Chinese technology giant is overcoming Washington's export controls, which since 2019 have barred it from obtaining components and technology from U.S. firms without approval.