<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">Dear Colleagues,</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">We are pleased to share that the International Conference on Bilevel Optimization (ICBO 2026), to be held in Pittsburgh on August 2–5, 2026, has already received
a strong volume of submissions as of March 31.</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">In response to several requests from colleagues, we are granting a
</span><span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 0);"><b>final extension</b></span><span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);"> of
the abstract submission deadline:</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 0);"><b>New DEADLINE: April 15, 2026</b></span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">This extension is intended to accommodate ongoing work while maintaining the conference timeline. We encourage you to take advantage of this opportunity and
submit your latest research.</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">Submission portal:</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(66, 139, 202);"><a href="https://cmt3.research.microsoft.com/cmtsrm/Submission/Index" target="_blank" id="OWA246b3218-8c0d-a0b7-1f0b-78917e2fd608" class="OWAAutoLink" title="Original URL: https://cmt3.research.microsoft.com/cmtsrm/Submission/Index. Click or tap if you trust this link." rel="noopener noreferrer" data-auth="NotApplicable" data-linkindex="8" style="color: rgb(66, 139, 202); margin: 0px;"><u>cmt3.research.microsoft.com/cmtsrm/Submission/Index</u></a></span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">(Search for "ICBO 2026" after login.)</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">All other conference details, including speakers and accommodations, remain unchanged. Please refer to the conference website for full information:</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(66, 139, 202);"><a href="https://bileveloptimization.org/icbo/2026/index.html" target="_blank" id="OWAac2e1cac-87c8-3378-fa2a-8a25a09deb9e" class="OWAAutoLink" title="Original URL: https://bileveloptimization.org/icbo/2026/index.html. Click or tap if you trust this link." rel="noopener noreferrer" data-auth="NotApplicable" data-linkindex="9" style="color: rgb(66, 139, 202); margin: 0px;"><u>bileveloptimization.org/icbo/2026/index.html</u></a></span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">Registration platform will be released soon. We look forward to your submissions and to welcoming you to Pittsburgh.</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">Best regards,</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">Bo Zeng and Ramteen Sioshansi</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; background-color: rgb(255, 255, 255); margin-top: 1em; margin-bottom: 1em;">
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 16.5px; color: rgb(51, 51, 51);">Conference Co-Chairs</span></p>
<div class="elementToProof" style="font-family: "Segoe UI", "Segoe UI Web (West European)", "Helvetica Neue", sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
<br>
</div>
<div class="elementToProof"></div>
</body>
</html>