Japanese retailer Aeon Co. today [Wednesday} reported group operating revenues up 5.5% year-on-year to ¥710.3bn (US$5.95bn) for its first quarter ended 20 May. Formerly known as Jusco Co., Aeon said same-store sales fell 1.5%, partly as a result of poor weather in May. However, cost reduction and a tighter control of administrative overheads helped overall results. June sales inched up 0.2%, the company said.