Contact Us

Get in Touch

We are happy to help with questions about your order, our products, or anything else related to the DongA Science Store. Please use the contact details below and we will get back to you as quickly as possible.

Customer Support Email

Email us at contact@comcom.ai. We aim to respond to all inquiries within 2 business days (Monday through Friday, excluding US federal holidays).

Business Address

Common Computer LLC
8 The Green, STE A
Dover, DE 19901
United States

Company

The DongA Science Store is the US online retail store of DongA Science Co., Ltd., a publisher and manufacturer of science education products. Our mission is to bring high-quality science kits, books, and educational goods to curious minds across the United States.

Online sales and payments for this store are operated by Common Computer LLC, the authorized e-commerce operator and Merchant of Record (MoR) in the United States. Common Computer LLC handles transactions, billing, and financial settlement for orders placed on this site.

Response Time

We respond to all customer inquiries within 2 business days. For urgent matters regarding a recent order (e.g., a damaged or missing item), please include your order number in the subject line so we can prioritize your request.