Less steel produced in China isbullish for US steelmakers. This, in turn, should be mostly bullish for CLF, as US steelmakers increase their own production and their orders for CLF's iron-ore pellets.
For CLF, there could be an offsetting bearish effect insofar as a lower seaborne price of iron ore lowers the contractual price for pellets that CLF sells to US steelmakers, but this pricing effect occurs with a lag.