The niche is U.S. importers/exporters and customs brokers dealing with drawback, customs duty, customs clearance, and e-filing. The data shows real intent: "drawback" has 12,100 volume, "customs broker" 9,900 at $15.92 CPC, "customs duty" 6,600, and "customs clearance" 3,600 at $14.95 CPC.