RE:RE:RE:RE:20 Years AgoReason it is relevant is trade-war/trade-uncertainty impacts the global economic growth outlook and drives recession fears. Spot price of copper is strongly correlated to people's economic growth perceptions (i.e. Dr. Copper). As a result Copper price has tanked recently which has put pressure on OCOs stock price. As Mariusz says this is just noise because the long term supply-demand fundamentals for copper remain very favourable.
To your point, both sides are obviously quite dependent on one another so no deal would be a huge lose-lose, everything now is just posturing and at a certain point rationality will prevail i.m.o