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Koch Industries won’t bid on Tribune newspapers

Union groups protested a possible sale to Koch Industries in Los Angeles in May.

Associated Press/File 2013

Union groups protested a possible sale to Koch Industries in Los Angeles in May.

NEW YORK — Koch Industries, which drew protests this year on speculation it might buy the Los Angeles Times or other Tribune Co. publications, said it is no longer interested in bidding. A spokeswoman confirmed Koch Industries would not be buying any of Tribune’s daily newspapers.

‘‘Koch continues to have an interest in the media business and we’re exploring a broad range of opportunities where we think we can add value,’’ said Melissa Cohlmia in an e-mail.

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In May, union groups rallied in Los Angeles, trying to ward off a sale to the company controlled by billionaire Republican donors Charles and David Koch. Later, Tribune said it was spinning off its papers as a separate unit.

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