"He" is called Ferran, and he wants you for his own selfish, unethical purposes.

[He leans forward, his expression hardening.] Since I have enough time to sit here and tell you how, then you can take the time to calm yourself while I speak. It'll do you no good to get angry with me and worked up when all I've done is try to help you.

[With that said, he takes a sip from the pint glass, resuming his original tone.]

Now, what you need to do is find certain materials, but obviously, they are not in the accessible portions of this lab. If they were, no doubt some of you would have found them by now and wondered what the hell they were. [Though...he thinks they'll wonder 'how' more than 'what'...] They have to be on this spacestation somewhere. In order for the experiment to work, the materials must be contained in experiment's location.