Guerrero Corn Tortilla for passover?

Is Guerrero corn Tortilla kosher for passover? Ingredients are: Corn Masa Flour, Water, Cellulose Gum, Propionic Acid (to Preserve Freshness), Benzoic Acid (to Preserve Freshness), Phosphoric Acid (Preservative), Guar Gum, Amylase Thank you!