Endfield operator Maymay tells that you can use Originium Powder to make bombs.

You're here! Our high payload situation hasn't changed at all!

Hohoho. Endmin, this barrel of Originium bombs is ready for use. Blasting, demolishing, and rubble-clearing work has never been easier!

She ... really likes explosives.

Oh, and our AIC Factory has been deployed, right? Endmin, you can totally use the Factory to make *even more* explosives! Heehee!

I've prepped the explosives and marked the detonation site. Don't worry, there's no risk of sympathetic detonation. I just hope you have the Originium Powder to make the bombs!