Cargill Inc. is monitoring the unrest in Ukraine, the world’s third-largest corn exporter, as an antigovernment insurgency intensifies.

Cargill’s grain-export operations haven’t been affected, its Kiev office remains open and no employees have been directly affected by the unrest, spokeswoman Corinne Holtshausen said yesterday in an e-mail. The Minneapolis-based crop trader and processor, the largest closely held U.S. company, has adapted shifts and encouraged employees in Ukraine to work from home where appropriate to ensure safety, she said. Cargill has been in Ukraine for more than 20 years and employs 600 workers, according to its website.

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