Panama Canal Authority Vice Presidency for Operations Advisory Shipping No. A-15-2026 May 13, 2026 TO: All Shipping Agents, Owners, and Operators SUBJECT: Scheduled Lane Outage at Gatun Locks and Modifications to the Transit Reservation (Booking) System. Beginning at 0001 hours on Tuesday, June 9, 2026, until 2359 hours on Wednesday, June 17, 2026, a dry chamber maintenance will be performed on the East Lane of Gatun Locks. During this period, the West Lane will remain operational, but lockage will take additional time. In accordance with the Transit Reservation (Booking) System regulations, the number of slots available in the Panamax Locks will be reduced to 16 during this maintenance period. Therefore, starting with the 2nd Period Tiebreaker Competition from May 26 to June 3, 2026, for booking dates from June 9 to June 17, 2026, four (4) booking slots will be offered to supers and no booking slots will be offered to regular vessels. No booking slots will be offered during Booking Period 3 for both supers and regular vessels. The total number of slots available will be 13 for supers and three (3) for regular vessels. The following table shows the reduction of slots in the Panamax Locks for the schedule maintenance: Additionally, during the maintenance period, of the total number of slots available to supers, no more than seven (7) may be booked for transit in each direction, and of these, no more than two (2) with daylight restrictions per direction. The combined number of daylight restricted vessels shall not exceed four (4) vessels. Similarly, for regular vessels, no more than two (2) may be booked for transit per direction, and of these, no more than one (1) may be allocated to vessels transiting with restrictions per direction for a total of one (1) vessel with restriction per transit date. Slots allocated during the Special Period and Period 1 for booking dates within the maintenance period will be grandfathered in case they exceed these limitations. 3654-A (OP-I) V.29/03/2023 Once the maintenance is complete, the 26 slots capacity for the Panamax Locks will be reinstated for booking dates beginning June 18, 2026. For any further inquiries regarding these rules, please contact: operationservices@pancanal.com. ORIGINAL SIGNED Boris Moreno Vásquez Vice President for Operations