Based on the joints, it's definitely not aluminum and doesn't appear to be titanium but an internally brazed steel. While I can't identify the components, they appear early 1990s and may be upper end Shimano based on the Ritchey components. Concorde was a Belgian brand but given the era this one was probably subcontracted. Taiwan would usually be by first choice if was TIG welded, but since it appears to be internally brazed, it may have been manufactured by Peugeot or MBK, in France. I'd be corking and sealing the open tops of those fork blades. At $20, it hard to go wrong.

Wrk101, may that Bridgestone manufactured frame have been Concord, without an "e" at the end? Concord was USA brand that did subcontract a lot to Bridgestone. The two brands are often and easily confused.