The British firm had initially promised to keep the Chinese equipment out of its core network in light of security issues, but when BT bought EE in 2016 for £12.5 billion ($15.9 billion) it started using Huawei gear for new 3G and 4G networks.
The chief of Britain's foreign intelligence services said this week that 5G reliance on Chinese technology was something Britain needed to discuss.
BT, which first signed up to work with Huawei in 2005, was one of the first companies outside of China to use its network equipment.
This kit is sometimes referred within the industry to being "the dumb stuff at the end of the pipes".
Shortly after, BT began removing Huawei equipment that it determined to be at the "control plan" - or core - of the network.
TELCO GIANT BT will remove Huawei equipment from its core 4G network within two years, according to the Financial Times.
"We're applying these same principles to our current request for proposal for 5G core infrastructure".
Chinese companies such as the telecoms giant Huawei could spy on Western consumers thanks to their dominance of the technology behind the new 5G superfast mobile network, a USA congressional commission has warned.
It said the process was to bring the EE networks into line with the rest of its business rather than a change of policy.
"This is a normal and expected activity, which we understand and fully support".
It said it began working with EE in 2012, and had supplied the mobile operators with 3G and 4G network solutions, including core network equipment.
"Working together, we have already completed a number of successful 5G trials across different sites in London, and we will continue to work with BT in the 5G era".