LME zinc 9% decline Friday looks excessive and too rapid against backdrop of underlying reason of fear of surplus metal in 2007, says Standard Bank. Analysis of LME zinc stocks justifies view of sluggish demand, but "neither quantum of stock change nor any visible fundamentals justify the sharp move we have seen this year," Standard Bank says. LME 3-month zinc is at $3,080/ton, unchanged on Friday PM kerb.