I wrote an article with the following sentence in it, but I find it a bit strange in the part I marked bold:
We would like to incentivize the firms in different levels of the supply chain to reduce to eliminate conflict mineral usage by their rational and economic deliberation, which can potentially be substantially less costly than enforcing a law that imposes stringent requirements on the firms.
I would like to say that the firms will reduce the usage until eventually eliminating the usage all together. But using "to" between two verbs seems confusing. Is this a correct way of saying it? If not, how best should I put it? I know I can replace the "to" with "or", but I think that would lose the sense that the change is gradual and also there is a general direction toward using less.