AEON is one of the largest retailers in Asia and is also a member of the Consumer Goods Forum. The company operates stores under several brands, including JUSCO and MaxValu. Since 2009, the company has been testing and optimizing a Sanyo CO2 direct expansion refrigeration system for supermarket showcases in Japan. In 2012, the company unveiled a plan to go HFC-free with natural refrigerants: 10% of all new stores in 2012, 15% of all new stores in 2013, 25% of all new stores in 2014 and 100% of all new stores in 2015. The company also plans to gradually convert the refrigeration systems in its existing 3500 stores. As of February 2017, it had 99 supermarkets using CO2. The new systems have reduced energy consumption during refrigeration operation by 10-20% compared to previous HFC systems and reduced CO2 emissions by about 50%.