Most developed jurisdictions require commercial kitchens (and commercial spaces in general) to have fire suppression systems, not necessarily fire sprinklers.

Most developed jurisdictions require commercial kitchens (and commercial spaces in general) to have fire suppression systems, not necessarily fire sprinklers. Water sprinklers are a common choice for fire suppression in many spaces because they're relatively cheap, but they're not the only option. A kitchen fire suppression system will generally be a wet chemical system that will safely blanket a grease fire while still being easy to clean off of food prep surfaces unlike dry chemicals.