Chubby Bubble Vapes by Modfuel Wholesale in 2014. Since 2014, Modfuel Wholesale has been manufacturing Chubby Bubble which specialize in bubble gum flavors. Manufactured in an ISO 6 Certified Clean Room. Registered Tobacco Manufacturer with the FDA. Multiple automated production lines. The Mod Fuel team consists of 100+ employees and is constantly growing to support our large network of customers. We are a privately owned company that is able to adapt quickly to any situation. Veteran-owned and founder-led, Mod Fuel Wholesale provides a workplace focused on personal and professional development.