Westpac Banking Corporation (Westpac), is a banking organization. The Company provides a range of banking and financial services in these markets, including retail, business and institutional banking and wealth management services. Westpac operates in five business divisions: Westpac Retail & Business Banking (Westpac RBB), Westpac Institutional Bank (WIB), St.George Banking Group, BT Financial Group Australia (BTFG), and New Zealand Banking. In June 2011, the Company ceased to be holder in PanAust Limited. On November 25, 2011, the Company announced that Westpac Banking Corporation Group ceased to be a substantial holder in the Company. As of February 24, 2012, Ludowici Limited announced that Westpac and its associated companies had ceased to be a holder in Ludowici Limited. On May 14, 2012, Primary Health Care Limited (Primary) announced that Westpac and its associated companies had ceased to be a substantial holder in Primary.