CitiÆs Chan replaces InvescoÆs Ma

Mabel Chan has quit Citigroup Asset Management to join Invesco as head of retail sales in Hong Kong. She replaces Joanna Ma, who is leaving the firm in a few weeks' time to pursue other options. Citigroup has no plans to replace her, says a firm spokesperson. Chan had reported to Henry Choon, who runs regional retail sales and co-heads institutional sales. Chan's role at Citi had been developing the regional retail business, and now that the firm has developed stronger country head…