Lack of investment-low inventory-tick tick tick
https://www.reuters.com/article/metals-copper-ahome/column-lack-of-mine-supply-growth-highlighted-by-copper-study-group-andy-home-idUSL5N22R2LM
Even with the trade dispute copper consumption is expected to stay strong enough to keep copper in a deficit for 2019...
IF the trade dispute between USA and China gets resolved then...