Remember: there are different forms of conjunctions
Use:
Using as, for, because, seeing that, seeing as, due to : gives reasons for a particular situation.
You can also use:
Inasmuch as introduces a clause adding details
In that introduces a clause adding details

Examples:
Seeing that we have a meeting tomorrow, I would like to suggest a briefing this afternoon.
Seeing as we have a major presentation tomorrow, inasmuch as I know, we should go over the power point presentation.