Feb 18 (Reuters) - :
* Polymetal International Plc
from 500p; rating underweight
* Polyus Gold International Ltd
from 150p; rating underweight
* Uralkali
rating underweight
* Evraz
underweight
* Rusal
roubles; rating equal weight
* Norilsk Nickel
rating overweight
* Severstal
overweight
For a summary of rating actions and price target changes on European companies: Reuters Eikon users, click on RCH/EUROPE Reuters 3000Xtra users, double-click RCH/EUROPE Thomson ONE users, type in RT/RCH/EUROPE
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