Vodafone Group Plc. is the world's leading mobile telecommunications company, with a significant presence in Europe, the Middle East, Africa, Asia Pacific and the United States through the Company's subsidiary undertakings, joint ventures, associated undertakings and investments. Vodafone Hutchison Australia (VHA) was formed in June 2009 following a merger between Vodafone Australia and Hutchison. VHA provides mobile services to 5.3 million customers in Australia. Vodafone Hutchison Australia is a 50:50 joint venture between Vodafone Group Plc and Hutchison Telecommunications (Australia) Limited.