Modifiers matching price:

• metal,
• special,
• regulated,
• precious,
• stable,
• official,
• basic,
• agricultural,
• affordable,
• changing,
• crucial,
• world,

Simple categories matching regulated:

• substance,
• component,
• worker,
• institution,
• material,
• area,
• item,
• activity,
• organization,
• drug,
• group,
• process,
• utility,
• fluid,
• metal,
• property,
• unit,
• profession,
• event,
• entity,
• market,
• waste,
• sector,
• price,
• industry,
• chemical,
• pollutant,
• contaminant,
• business,
• contamination,
• compound,
• hydrocarbon,
• particle,
• constituent,
• commodity,
• professional,
• body,