From Morgan Stanley:
[Chinese] ore production: official data suggest raw ore production is down 13% yoy to 1300Mt (all on a seaborne grade eqv. basis, there’s at least 50Mt of production cut;currently producing at about 250Mtpa):
This is tracking 3% better (for Oz) than I was expecting and helps explain some of the recent price firmness in iron ore, knocking out an extra 10-20mtpa than my forecast.
The other major two factors are miner market manipulation and low Chinese port stocks. I still expect price erosion into year end and no seasonal restock.