Cosco Corp. Singapore Ltd. aims to draw one third of its business each from ship repairs and conversion, new shipbuilding and offshore marine engineering services. The three key businesses contribute $481.2m or 91 percent of the company's $528.8m revenue during the January to March quarter, Energy Current reported. Of the total revenue from the three key business segments, 21 per cent comes from ship repairs contracts, half of its 42 per cent share last year. The smaller revenue share from ship repairs business is in line with Cosco's move to secure higher value contracts in new shipbuilding and offshore marine engineering services, Cosco Vice Chairman and President Ji Hai Sheng said during a press briefing in .