The Kari-Out Company sells in bulk, directly to restaurants. If you'd like to convince your favorite Asian restaurant they'd be crazy not to order these soy sauce packets for their customers, the Kari-Out website contains a note in English and in Chinese for you to print out and bring to the chef. If you can't convince your favorite restaurant to order some for you, perhaps your local celiac support group could place a bulk order and its members could then have soy sauce packets to carry in their pockets or purses when they go out to eat. The Panda Brand Low Sodium Gluten Free Soy Sauce packets are also available from a variety of online vendors, at widely varying per-packet prices.
Visit the Kari-Out Company's website for more information. For the record, here's their address and phone number: Kari-Out Company, 399 Knollwood Road, Suite 309, White Plains, NY 10603. Tel: (800) 433-8799 or (914) 580-3200. The president of the company is Paul Epstein. According to the KariOut website, he and his daughter have celiac disease.