Panama Canal Authority Vice Presidency for Operations Advisory Shipping No. A-11-2026 April 20, 2026 TO: All Shipping Agents, Owners, and Operators SUBJECT: Scheduled Culvert maintenance at Gatun Locks. Beginning at 0400 hours on Tuesday, May 5th, 2026, until 2359 hours on Friday, May 19th, 2026 (12 days), the center wall culvert of Gatun Locks will be out of service for scheduled maintenance on cylindrical and rising stem valves. Lockages will take additional time during the maintenance period. No decrease in capacity is expected, therefore, the limitation on the number of restricted vessels and the number of slots per direction for Supers and Regulars in the Panamax Locks will remain unchanged. For any further inquiries regarding these rules, please contact: operationservices@pancanal.com. ORIGINAL SIGNED Boris Moreno Vásquez Vice President for Operations 3654-A (OP-I) V. 29/03/2023