Sam Yihui Zhang

Sam Yihui Zhang holds a CBP-issued customs broker license with filer code DMB and maintains a practice in Rowland Heights, California — a community in the eastern San Gabriel Valley with strong commercial ties to Asian trade lanes. Given the proximity to the Ports of Los Angeles and Long Beach, which collectively handle more containerized cargo than any other U.S. gateway, Sam is well-situated to assist importers navigating the formalities of ocean and air freight entry into Southern California.

The Los Angeles–Long Beach port complex is the primary U.S. entry point for goods manufactured in China, South Korea, Japan, Taiwan, Vietnam, and other Asia-Pacific countries. Importers of consumer goods, electronics, machinery, textiles, and general merchandise moving through these ports need a licensed broker who understands formal vs. informal entry customs thresholds, proper HTS code classification using the 10-digit schedule, and importer of record requirements — all core competencies of a practicing customs broker.

For importers establishing a new import program, understanding import bond requirements is essential. Sam can assist with both single entry bond customs filings for one-time shipments and continuous customs bond arrangements that cover ongoing import activity. Proper bond selection affects compliance exposure and cash flow, particularly for businesses scaling their import volume.

ISF filing — also known as ISF 10 plus 2 filing — is a mandatory pre-arrival requirement for ocean freight shipments entering the U.S. Importers who miss or file inaccurate Importer Security Filing submissions face CBP penalties. Working with a local licensed broker helps ensure these filings are submitted accurately and on time.

Brokers with knowledge of duty drawback programs can also provide significant value to manufacturers and distributors. Whether evaluating unused merchandise drawback, manufacturing drawback customs eligibility, or a broader duty drawback broker arrangement, understanding which program applies to a given supply chain requires careful analysis of entry records and product classifications.

Rowland Heights is also near the Ontario, CA area — where Sam has also been listed — giving access to the Inland Empire logistics infrastructure that supports major e-commerce and distribution operations. Importers curious about Section 321 de minimis entry thresholds or managing Schedule B vs HTS code classification questions for export documentation are encouraged to reach out directly.

To connect with Sam Yihui Zhang, call 626-503-6925 or email samzhang8383@yahoo.com.