Dim sum bonds - renminbi currency bonds sold outside the Chinese mainland - has financial centres around the world falling over themselves for a piece of the rapidly growing market. Robin Wigglesworth, capital markets correspondent, looks at how London has positioned itself near the top of the queue.<br /><br />For more FT video content, visit the Financial Times video page at: http://www.ft.com/video<br /><br />http://www.FT.com/