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Please contact the IOU President (provide address and e-mail) if you plan to make a larger donation. The IOU is also accepting stocks (securities) for the donor to save on capital gains taxes in the United States. You may specify the use of your donation for e.g. "travel support to attend IOCongresses by students and delegates from low-income countries" or "For where it is needed the most".


In case you want to support the work of the IOU, you may donate via the PayPal account of the IOU. The upper form will instantly guide you to the donation via PayPal. Please feel free to provide a comment to the treasurer or provide your address for detailed information. However, incase you want to donate via your own preferred PayPal gateway, please use our PayPal Mail-Address below.