Base metals tried higher on Friday and at the day’s highs prices were up an average of 0.6 percent, led by a one percent rise in aluminium, but they generally slid into the close to close down an average of 0.1 percent, skewed by a 0.5 percent rise in tin, while aluminium and nickel closed up 0.1 percent, lead and zinc closed down around 0.6 percent and copper closed off 0.1 percent at $4,777. Read more at fastmarkets.com