They have a stockpile of oil, they should use that. Nuclear fuel can be turned into weapons too easily, they can't be trusted. There is no room for negotiation on this in my opinion.
I'm glad you are not in control of the foreign policy decisions. Such myopic paternalism is quite dangerous. Making decisions about who should and shouldn't be trusted requires great skill, insight and life experience.
Trust building is a process. You must start to trust or else nothing progresses. People who always distrust first are usually unsuccessful in life.
Jurisprudence of this kind, at this level of negotiation, should be left to experts.