PRTASCO - NOTICE OF BOOK CLOSURE

## para LISTING'S CIRCULAR NO. L/Q : 36328 OF 2006 ## para A final dividend of 11.12% per share less 28% tax or net dividend of 4.0 sen per share. ## para Kindly be advised of the following : ## para 1) The above Company's securities will be traded and quoted [ "Ex - Dividend" ] ## para as from : [ 16 June 2006 ] ## para 2) The last date of lodgement : [ 20 June 2006 ] ## para 3) Date Payable : [ 28 June 2006 ]