Contact Us

Telephone

General Information:

Peter Le 714-414-6479

Sale Information:

Mike Chu 909-215-3640

Electronic mail

General Information: Peterle@grandsumousa.com

Sale::MikeChu@grandsumousa.com

20311 Valley Blvd. Suite I
Walnut, CA 91789

Monday - Friday 09:00 a.m. - 06:00 p.m.
Closed Saturday and Sunday