Currently, explosives are only used to create Explosive Charges, but there may be another use implemented later in the game's development.
Along with Supply Signals, Explosives can only be found in airdrop crates, making them one of the rarest items in the game. Once found, explosives can be researched by players and then crafted.
Currently, there are no existing blueprints for Explosives.
In order to craft explosives you will need: 2 Low Grade Fuel, 5 Sulfur, 20 Gunpowder and 10 Metal Fragments.