It was originally a joint venture with Mesa Air Group Inc. of Phoenix, but the U. S. company sold its 49% stake to its partner Shenzhen Airlines in 2009.

它原是与梅莎航空(Mesa Air Group Inc。)的一家合资公司，但这家总部位于凤凰城的美国公司2009年将所持49%的股权售予了合作伙伴深圳航空。

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The effervescent Ornstein, now 42, is chief executive of Phoenix-based Mesa Air Group.

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And he notes that Mesa Air Group, which operates primarily as a contract carrier throughout the U.S., recently signed a joint venture agreement with Shenzhen Airlines to create a Chinese regional airline.

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