High-performance materials supplier Low & Bonar forecast annual profits in line with hopes after a better second half.The group, which provides yarns, fabrics and fibres for industrial uses such as preventing pollution at landfill sites, avoiding coastal and river erosion and reinforcing concrete, said second-half like-for-like sales were 5% above last year.They were 6% ahead including a £3m in-line contribution from Slovakian acquisition Texiplast.The much improved second half performance resulted in full year constant currency sales growth of about 3%, it said."Full year pre-tax profits are expected to be within the range of market expectations," the group said in a trading update ahead of annual results on February 4th.Shares rose 0.75p to 77p at 08:39 in London.PW