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If you have questions, comments, issues or feedback regarding IChC, feel free to send us a message via e-mail or contact the IChC ambassadors in your region. Our team will get back as soon as possible.

Important: Make sure to check out the FAQ (Frequently Asked Questions) page. There you find many answers regarding eligibility, prizes, submission, problems and errors, deadlines, rounds, registration costs, teachers, ambassadors, and more.

 FAQ Page: Frequently Asked Questions  
 Ambassadors:   List of Ambassadors  
 General E-Mail:   info(at)intchc.org
 For Teachers: teachers(at)intchc.org
 Phone: +49-177-6762399 (Germany)
 Address: DE Postf. 110105, 69071 Heidelberg, Germany/DE