As of 20th of June 2005, the Clearing House of the WTB Hannover rises the Initial Margin Rates for Table Potatoes from 250 € to 400 €, for Futures on Processing Potatoes from 400 € to 600 € and for Futures on London Potatoes from 300 € to 500 €.
All rates are for Clearing Members.
You can download all actual Initial Margin Rates by clicking here.