This comes amid rumours that Apple was considering buying memory chips from YMTC for the next iPhone 14, according to Financial Post.

Mark Warner, a Democrat who chairs the Senate intelligence committee, and Marco Rubio, a Republican, were among those who wrote to Avril Haines, the director of national intelligence, asking for a review of the contentious transaction.

According to Financial Post, this new arrangement between YMTC and iPhone entails 'severe privacy and security dangers in the global digital supply chain that Apple helps to establish' because of the chipmaker's murky ties to the Chinese Communist party.

There have also been claims that Beijing's large subsidies have aided the chipmaker's rapid expansion. Data on the increase in the chipmaker's share from 2020 to 2021 was published by the media portal, citing UK-based research firm Omdia.

According to the outlet, which cited the study, 'YMTC's share of the worldwide NAND flash memory market climbed from 0.6 pc in 2020 to 2.3 percent in 2021.'

According to rumours, Apple declared that YMTC was a potential supplier for some iPhone models in China. Although Texas Republican John Cornyn and Democratic Senate Majority Leader Chuck Schumer also signed the letter, which was written by US Director of National Intelligence Avril Haines, Apple on Thursday declined to comment.

The senators urged a thorough evaluation of the deal's risks to the national economy and security. They asked her to look into how the Chinese Communist Party utilises YMTC to promote its domestic chip business and drive out US and ally semiconductor manufacturers.

Additionally, they requested a study of YMTC's alleged role in helping Huawei and other Chinese businesses avoid US sanctions. Financial Post said that YMTC and other Chinese technology firms have come under heightened scrutiny in Washington.