Confidence seems to be spiraling over Infrastructure investor Infratil, as the Company witnesses its operating performance in the first four months of the 2011 financial year, nudging its confidence levels high.

The Company is sure over its guidance that full year operating revenue would lie between $390 million and $430 million, Chief Executive Marko Bogoievski assured shareholders at the Company's annual meeting in Wellington today.

The infrastructure investment giant has expressed his full confidence over its style of active portfolio management, claiming it to emerge as useful and well suited in the approaching time.

In addition, Infratil investment funds prevailing in the market have been claimed to be poised, as they sought to manage utility and infrastructure assets to higher earnings, unlike a spate of other funds, boosted Bogoievski.

Also, the meeting witnessed the Company hailing of its recent 50% investment in Greenstone Energy, and highlighting the robust performance showed by its 50.5 per cent-owned TrustPower. TrustPower is claimed to be the investment group's largest single investment ever.

The board is scheduled for attending the inauguration of the 120 Megawatt gas-fired Kwinana power station in Perth, next week.