Aug 20 (Reuters) - Wesfarmers Ltd WES.AX :
* FY21 NET CAPITAL EXPENDITURE OF $550M TO $750M EXPECTED
* SALES EXPECTED TO BE IMPACTED BY SOME CUSTOMER PURCHASES IN FY20 BEING BROUGHT FORWARD FROM FY21
* OFFICEWORKS OUTLOOK FOR YEAR AHEAD REMAINS UNCERTAIN
* FINAL INVESTMENT DECISION ON MT HOLLAND LITHIUM PROJECT DUE IN FIRST QUARTER OF 2021 CALENDAR YEAR