SO BHP, Rio and CVRD have kept up with the Chinese city building...

SO BHP, Rio and CVRD have kept up with the Chinese city building pace to date. Therefore they shouldn't have any problem keeping up to Chinese demand as the global economy slows and make no mistake it is slowing. Moral of the story, laggards to the production scene will have a large cost base, lower grade ores to market and ... could it ever happen? Prices go down ...