For high-volume needs, WebstaurantStore and The Wholesale Candy Shop offer full cases:
Some specialty retailers like ConcessionSite list peppermint bulk cases with 280 total packs (6 sticks each) for ~$119.99. Flavor Availability in Bulk extra gum bulk buy
Assortments with flavors like Spearmint, Peppermint, and Polar Ice are available in 18-count boxes at wholesalers like Sam's Club for around $19.78. Wholesale & Business Cases For high-volume needs