Dry bulk shipowner Courage Marine has warned it expects to make a first half loss. Courage Marine said it expected to report a first half loss due to high bunker prices, an oversupply of bulkers in Asia due a reduction in shipments by Japan and a worsening economic climate, Seatrade Asia online reports.Expenses incurred from the company’s secondary listing in Hong Kong added to the to the loss. Courage Marine is dual-listed in Singapore and Hong Kong. The company’s half year financial results will be released this month.