A. At any time or times during or after the end of each policy year (but not after such policy year has been closed) the Directors may decide to levy from the Owners of ships entered in respect of that year (other than Fixed Premium Entries) one or more Supplementary Premiums. The Directors may levy such a Premium either (i) by deciding upon a percentage of the net Mutual Premium or (ii) by deciding upon a percentage of the premium ratings of all ships entered for that year.
B. An Owner of a ship (other than a Fixed Premium Entry) entered for any policy year shall be bound to pay by way of Supplementary Premium a sum ascertained, in the case of (i) by multiplying the percentage ordered by the Directors by the net Mutual Premium paid or payable by him in respect of such policy year and, in the case of (ii) by multiplying the percentage ordered by the Directors by the premium rating of the entered ship by the entered tonnage of the ship in the Association.
C. The Directors, the Managers or their servants or agents may at any time seek to enable Owners to become aware of their financial commitment for the relevant policy year by indicating an estimate of the percentage at which it is hoped that any Supplementary Premium will be levied. If any such estimate shall be given to any Owner it shall be without prejudice to the right of the Directors to levy Supplementary Premiums and Overspill Calls for the relevant policy year in accordance with these Rules at a greater or lesser percentage than so indicated and neither the Association, the Directors, the Managers nor any of their servants or agents shall under any circumstances be under any liability in respect of any estimate so given or in respect of any error, omission or inaccuracy contained therein.