Australia's S&P/ASX 200 index slightly declined on Wednesday as country posted a trade deficit instead of predicted surplus in February. S&P/ASX 200 index dropped 0.07% or 3.10 points and closed at 4,333.90 with miners posting major losses as copper and gold futures declined. BHP Billiton lost 1.3% and Fortescue Metals edged down 1%. The main gainers were Ardent Leisure and QBE Insurance each adding 7.3% and 3.4% respectively. On the downside Transfield Services tumbled 11.7%.