5 December, 2023 30 years ago, a disruptive tech devastated copper prices. It could be about to happen again!Goehring & Rozencwajg is ‘incredibly bullish’ on copper over short term, but new tech could supress prices longer termIntroduction of heap leaching & SX-EW in the 1990s depressed the copper market for most of the decadeG&R say two