The Kwinana power station is jointly owned by Energy Infrastructure Trust (which is managed by Infrastructure Capital Group (ICG)) and Sumitomo Corporation.
ICG is an Australian-based infrastructure investment manager with over A$1 billion of equity funds under management.
ICG specialises in the origination and investment management of equity investments in the utility and infrastructure sectors. ICG has strong specialist capabilities in existing and development opportunities in the energy sector, including pricing, generation, transmission and distribution http://www.infrastructurecapital.com.au/
Sumitomo Corporation is one of the world's leading fully integrated trading and investing companies headquartered in Tokyo, Japan. Sumitomo has accumulated knowledge and experience from all over the world in many business fields over the years, from commodity trading, industry products distribution, mineral resources investments, infrastructure construction, operation and management etc.
Consistent with its long term growth policy, Sumitomo Corporation Group now holds a combined equity-based share of approximately 6,000MW in power generation capacity throughout the world (as of April 2013). Sumitomo has invested in the Kwinana Project through its wholly owned subsidiary, Summit Southern Cross Power Holdings Pty Ltd (SSCPH). SSCPH also holds shares in Bluewaters power stations in Collie, Western Australia.