Aug 9 (Reuters) - Abacus Property Group ABP.AX :
* CH WHOLESALE PARTNERSHIP ACQUIRES CBD OFFICE TOWER
* EXPECTED TOTAL PURCHASE PRICE IS $630 MILLION
* 75% OF TOTAL PURCHASE PRICE PAYABLE BY MID-NOV 2019 & REMAINING 25% SUBJECT TO A PUT AND CALL OPTION EXPIRING AT END OF OCT 2020