Mac Customs Brokerage Inc.

Mac Customs Brokerage Inc. is a federally licensed customs brokerage firm based in Monrovia, California, assigned CBP filer code 8RQ. The firm is owned and operated by Irene Mac, a licensed customs broker with professional experience spanning multiple Southern California logistics hubs including Los Angeles, La Mirada, and Pomona — a background that reflects deep familiarity with the region's freight and import ecosystem.

Monrovia's location in the San Gabriel Valley places Mac Customs Brokerage squarely within the greater Los Angeles import corridor, giving the firm direct access to cargo moving through the Ports of Los Angeles and Long Beach. Together, these two ports handle roughly 40% of all US containerized imports, making proximity to this gateway highly relevant for importers sourcing goods from Asia, particularly China, Japan, South Korea, and Southeast Asia.

For importers, working with a local broker near these ports means faster coordination on entry filing, classification review, and CBP exam responses. Mac Customs Brokerage Inc. assists clients with core compliance obligations including customs entry preparation, Importer Security Filing (ISF) submission — a requirement for all ocean shipments entering the US — and accurate HTS code classification using the harmonized tariff schedule. Proper classification is critical for determining applicable duty rates and ensuring compliance with US import requirements.

The firm also supports importers in understanding customs bond requirements, which are mandatory for commercial shipments. For businesses that have overpaid duties in prior import transactions, the duty drawback program may offer a path to recovering those costs — a service area that requires careful documentation and knowledge of CBP ACE portal processes.

Whether you're an established importer or a company new to the process of how to import goods into the USA, Mac Customs Brokerage Inc. provides licensed, professional guidance through the complexities of US customs clearance. The firm's focused, independent structure makes it a practical option for small and mid-sized importers seeking direct broker attention rather than being routed through a large freight forwarding call center.

Importers in the San Gabriel Valley, greater Los Angeles area, and surrounding Southern California communities can reach Mac Customs Brokerage Inc. at 626-478-3553 to discuss their customs brokerage needs.