In The Division 2 there are a range of different crafting materials, but one, the exotic component, is rarer than the rest. That's because you can't just loot for them in the open world, as you can with things such as steel and titanium.
Exotic components are important because you need them to upgrade and recalibrate exotic weapons and gear pieces, and they're part of levelling up your expertise as you hit higher levels. Of all the materials in the game, it's likely that exotic components are the one you're going to run out of most often.
