Gold Silver Reports (GSR) – Aluminum Drops Most in Seven Years After U.S. Signals Rusal Sanctions Relief — Shares in the largest U.S. aluminum producer headed for the biggest slump in nine years as prices of the refined metal tumbled in London after the U.S. opened the door to relief from sanctions on United Co. Rusal, easing supply concerns. Century Aluminum Co. and Kaiser Aluminum Corp. also declined.