So, consider this: The Fortune 500 list for 2012 had 18 Female CEOs out of 500.

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But only Petronas, a Malaysian oil and gas firm, also appears in the Fortune 500 list of top international firms.

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The Fortune 500 list in recent years ranks it under the Information Technology Services industry, when years ago it would have been ranked under Computers, Office Equipment.

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China has 37 companies on the Fortune 500 list.

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The company ranks 111 in the Fortune Global 500 list of the world's biggest companies.

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To be sure, there are no Latinas as CEOs of top Fortune 500 companies per 2012 list.

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That means immigrant entrepreneurs are overrepresented on the list of founders of Fortune 500 companies.

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