Net profit at Chun Wo Holdings plunged 10 per cent from HK$46.38 million to HK$41.33 million for the year to March 31. Turnover fell from HK$2.71 billion to HK$2.31 billion in the period. The construction company said it now has HK$8.2 billion contacts in hand, with about HK$1.5 billion outstanding.