Some of Apple's most popular products were hit by the September tariffs: The AirPods, Apple Watch, HomePod, and certain Beats headphone models, according to Bloomberg.
iMac computers and certain parts needed for iPhone repairs and storage are also affected.
Apple CEO Tim Cook has privately pressed Trump on the negative impact the trade war has had on the company — and how tariffs benefit its main rival Samsung Electronics Co, a South Korean company that wouldn't be subject to the levies.
Apple's large supply chain relies heavily on China, where it assembles the majority of its products before importing them into the United States. The trade war has made it more difficult for Apple to sell its phones to China, NPR reported.
Whether Apple absorbs the tariff or passes on its cost to consumers remains unclear as it maintains higher profit margins compared to other consumer electronics makers. But analysts at Morgan Stanley said Apple is more likely absorb its cost in a report back in May.
If the next round of tariffs go ahead on Dec. 15 as expected, some of Apple's most popular products like the iPhone will also be hit. According to Reuters, 46 of 50 Apple products could face tariffs by the end of the year.