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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);"><b>Dear Colleagues,</b></span></p>
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<b><br>
</b>We are pleased to release the Third Announcement of the International Conference on Bilevel Optimization (ICBO 2026).</div>
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Extension Deadline of Abstract Submission</h2>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(192, 0, 0); background-color: yellow;"><b>NEW DEADLINE: APRIL 1, 2026</b></span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">The abstract submission deadline has been extended to
</span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(192, 0, 0);"><b>April 1, 2026</b></span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">. Acceptance decisions will be announced by the first week
of April 2026.</span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">Submission Portal:
</span><span style="font-family: Cambria, serif; font-size: 11pt; color: blue;"><a style="color: blue; margin: 0px;" data-auth="NotApplicable" data-linkindex="0" originalsrc="https://cmt3.research.microsoft.com/User/Login?ReturnUrl=%2FConference%2FRecent" rel="noopener noreferrer" title="Original URL: https://cmt3.research.microsoft.com/User/Login?ReturnUrl=%2FConference%2FRecent. Click or tap if you trust this link." class="OWAAutoLink" id="OWA9fd08265-53de-1b34-c9ce-ee68ef833f54" target="_blank" href="https://cmt3.research.microsoft.com/User/Login?ReturnUrl=%2FConference%2FRecent">CMT
Login (Search ICBO 2026 after login)</a></span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">After login, search for “ICBO” — one of the results is: International Conference on Bilevel Optimization 2026.</span></p>
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Registration Scheme (Opening Soon)</h2>
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<span style="font-family: Symbol; font-size: 11pt; color: rgb(36, 36, 36);">·</span><span style="font-family: "Times New Roman"; font-size: 7pt; color: rgb(36, 36, 36); line-height: normal;"> </span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);">Early
registration (on or before June 15, 2026):</span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);"><b>$300 (and Student: $150)</b></span></p>
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<span style="font-family: Symbol; font-size: 11pt; color: rgb(36, 36, 36);">·</span><span style="font-family: "Times New Roman"; font-size: 7pt; color: rgb(36, 36, 36); line-height: normal;"> </span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);">Regular
registration (until August 1, 2026):</span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);"><b>$450 (and Student: $200)</b></span></p>
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<span style="font-family: Symbol; font-size: 11pt; color: rgb(36, 36, 36);">·</span><span style="font-family: "Times New Roman"; font-size: 7pt; color: rgb(36, 36, 36); line-height: normal;"> </span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);">The
summer school is free for conference registrants. For participants attending the summer school only, the fee is
<b>$100</b>.</span></p>
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Plenary Speakers</h2>
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<span style="font-family: Symbol; font-size: 11pt; color: rgb(36, 36, 36);">·</span><span style="font-family: "Times New Roman"; font-size: 7pt; color: rgb(36, 36, 36); line-height: normal;"> </span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);">Amy
Greenwald, Brown University, USA</span></p>
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<span style="font-family: Symbol; font-size: 11pt; color: rgb(36, 36, 36);">·</span><span style="font-family: "Times New Roman"; font-size: 7pt; color: rgb(36, 36, 36); line-height: normal;"> </span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);">Leonardo
Lozano, University of Cincinnati, USA</span></p>
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<span style="font-family: Symbol; font-size: 11pt; color: rgb(36, 36, 36);">·</span><span style="font-family: "Times New Roman"; font-size: 7pt; color: rgb(36, 36, 36); line-height: normal;"> </span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);">Shoham
Sabach, Cornell University, USA</span></p>
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Tutorial Lectures</h2>
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<span style="font-family: Symbol; font-size: 11pt; color: rgb(36, 36, 36);">·</span><span style="font-family: "Times New Roman"; font-size: 7pt; color: rgb(36, 36, 36); line-height: normal;"> </span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);">Zhaosong
Lu, University of Minnesota, USA</span></p>
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<span style="font-family: Symbol; font-size: 11pt; color: rgb(36, 36, 36);">·</span><span style="font-family: "Times New Roman"; font-size: 7pt; color: rgb(36, 36, 36); line-height: normal;"> </span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(36, 36, 36);">Oleg
Prokopyev, University of Zurich, Switzerland</span></p>
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Hotel Accommodations</h2>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">We are pleased to offer special group room rates for attendees. All room blocks have a reservation cutoff of
</span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(192, 0, 0);"><b>July 1, 2026</b></span><span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">. We strongly encourage participants to book early to secure
their preferred accommodation. Hotel reservation details and booking links are available here:
</span><span style="font-family: Cambria, serif; font-size: 11pt; color: purple;"><a style="color: purple; margin: 0px;" data-auth="NotApplicable" data-linkindex="1" originalsrc="https://bileveloptimization.org/icbo/2026/local.html" rel="noopener noreferrer" title="Original URL: https://bileveloptimization.org/icbo/2026/local.html. Click or tap if you trust this link." class="OWAAutoLink" id="OWA432b46a3-eb86-9fb1-0f83-1433d4846e6e" target="_blank" href="https://bileveloptimization.org/icbo/2026/local.html">https://bileveloptimization.org/icbo/2026/local.html</a></span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">Please check the conference website for updates and announcements
</span><span style="font-family: Cambria, serif; font-size: 11pt; color: blue;"><a style="color: blue; margin: 0px;" data-auth="NotApplicable" data-linkindex="2" originalsrc="https://bileveloptimization.org/icbo/2026/index.html" rel="noopener noreferrer" title="Original URL: https://bileveloptimization.org/icbo/2026/index.html. Click or tap if you trust this link." class="OWAAutoLink" id="OWA0bad6139-e4c8-7c5c-f7b4-1263e7ff9d03" target="_blank" href="https://bileveloptimization.org/icbo/2026/index.html">https://bileveloptimization.org/icbo/2026/index.html</a></span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);"><br>
We look forward to your submissions and to welcoming you to ICBO 2026.<br>
<br>
</span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">Best regards,</span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">Bo Zeng and Ramteen Sioshansi</span></p>
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<span style="font-family: Cambria, serif; font-size: 11pt; color: rgb(0, 0, 0);">Conference Co-Chairs</span></p>
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