I was reading an article about the new 25% tariffs that Trumps wants to put on 1300+ products/items from China, and luckily there was a link to the document.
Included in the list, apart of industrial equipments, steel/iron/aluminum there is also a lot of electronic testing gear and also components like:
85322100 ........... Tantalum fixed capacitors
85322200 ........... Aluminum electrolytic fixed capacitors
85322300 ........... Ceramic dielectric fixed capacitors, single layer
85322400 ........... Ceramic dielectric fixed capacitors, multilayer
85322500 ........... Dielectric fixed capacitors of paper or plastics
85322900 ........... Fixed electrical capacitors, nesi
85323000 ........... Variable or adjustable (pre-set) electrical capacitors
85329000 ........... Parts of electrical capacitors, fixed, variable or adjustable (pre-set)
85331000 ........... Electrical fixed carbon resistors, composition or film types
85332100 ........... Electrical fixed resistors, other than composition or film type carbon resistors, for a power handling capacity not exceeding 20 W
85332900 ........... Electrical fixed resistors, other than composition or film type carbon resistors, for a power handling capacity exceeding 20 W
85333100 ........... Electrical wirewound variable resistors, including rheostats and potentiometers, for a power handling capacity not exceeding 20 W
85334040 ........... Metal oxide resistors
...
85412100 ........... Transistors, other than photosensitive transistors, with a dissipation rating of less than 1 W
85412900 ........... Transistors, other than photosensitive transistors, with a dissipation rating of 1 W or more
85413000 ........... Thyristors, diacs and triacs, other than photosensitive devices
85414020 ........... Light-emitting diodes (LED's)
85414070 ........... Photosensitive transistors
85414080 ........... Photosensitive semiconductor devices nesi, optical coupled isolators
85414095 ........... Photosensitive semiconductor devices nesi, other
85415000 ........... Semiconductor devices other than photosensitive semiconductor devices, nesi
85416000 ........... Mounted piezoelectric crystals
https://ustr.gov/sites/default/files/files/Press/Releases/301FRN.pdf