SingTel Optus Pty Limited is the second largest telecommunications company in Australia, and is a wholly owned subsidiary of Singapore Telecommunications . The company primarily trades under the Optus brand, while maintaining several wholly owned subsidiary brands, such as Virgin Mobile Australia and Boost Mobile in the mobile telephony market, Uecomm in the network services market and Alphawest in the ICT services sector.
The Australian Open is a major tennis tournament held annually over the last fortnight of January in Melbourne, Australia. First held in 1905, the tournament is chronologically the first of the four Grand Slam tennis events of the year – the other three being the French Open, Wimbledon and the US Open. It features men's and women's singles; men's, women's and mixed doubles and junior's championships; as well as wheelchair, legends and exhibition events.