Richard Colquhoun

Argo Investments Ltd. operates as a closed-end investment fund and investment trust. It engages in managing of portfolio of shares and securities, providing capital growth, regular income, and protection of investors including private individuals, companies, trusts, and superannuation funds. The company was founded in 1946 and is headquartered in Adelaide, Australia.

Antares Capital Partners Ltd. (Antares Capital) is an investment management firm headquartered in Melbourne, Australia. The firm was founded in 1994 and formerly known as Portfolio Partners and Aviva Investors. They are a subsidiary of National Wealth Management Holdings Ltd., itself a subsidiary of National Australia Bank Ltd. (ASX: NAB) in Australia. Antares Capital manages assets on behalf of Australian investors.

AMP Capital Investors Ltd. (AMPCI) is the wholly-owned investment management subsidiary of AMP Capital Holdings Ltd., ultimately held by financial group AMP Ltd. (ASX: AMP) in Australia. Founded in 1849 as the non-profit Australian Mutual Provident Society, the group is an Australian superannuation provider and asset manager. The firm is headquartered in Sydney with additional offices in New Zealand, Dubai, China, Hong Kong, India, Ireland, Japan, Luxembourg, UK and the US. They were one of the first to invest in infrastructure when they participated in the financing of the Sydney Harbour Tunnel in 1988. AMPCI is a socially responsible investor which manages a range of unlisted and listed infrastructure investments in Asia, Europe, North America, Australia and New Zealand as well as life insurance, institutional and mutual funds for the AMP group.