Market news: Asia media round-up

China’s central bank reiterated its call to diversify the international currency system. Separately, Japan’s financial regulator bans Citi from selling retail financial products in the country for a month, Daiwa Securities looks to launch its first public share sale in almost 20 years, and Kumho Asiana moves to offload a controlling stake in Daewoo Engineering & Construction to ease a liquidity crisis.