Key Points * Saudi Arabia last year increased the valuation of its unexploited mineral resources from $1.3 trillion to $2.5 trillion, boosted by the discovery of rare earth elements and metals. * The kingdom on Wednesday announced a new mineral investment project valued at $100 billion, with $20 billion already in the final engineering phase or under construction. * Investment in critical minerals mining and processing must be happening “as fast and furious as possible” in Saudi Arabia, its energy minister said at the Future Minerals Forum in Riyadh. =============================================================================== RIYADH, Saudi Arabia — Saudi Arabia is pushing ahead to...