Trade wars are covered extensively in The Traveller Adventure.
Makers are assembler/disassembler, CAD/CAM, 3D printers, on stroids. They need the correct raw materials to make their stuff, the correct raw materials may even include chips that are better manufactured in dedicated chip manufactories.
Traveller fusion power makes any process that requires lots of energy in the here and now relativley trivial and much lower cost, that included particle accelerator experiments, transmutation and even anti-matter production.
Damper/meson tech allows for manipulation of the forces that build atoms, the application of such technology should also make transmutation relatively trivial.
That said, it may well be much easier to just send a mining drone to an asteroid that contains more gold or whatever element you want. Disassemble and separate the elements in said asteroid and you would reduce the value of elements to less than that of dust.
Such asteroids exist in our solar system, they likely can be found in most systems of similar population stars.