I choose Raw material prices, this information will give immidiate insight in increase or decrease of cost in many sectors, specially the transportation, and manufacturing all around the world.
The second is Raw material news, this will immidiately tell me what country is holding the strings, and what countries is in dire need of material, easy way of finding out a possible supplying market.
Import and Export news, are important too, but since that varies a lot and its easiest to find out through the agents and website, I didn´t choose that.