X0306 4 2022-03-31 0001070423 PLAINS ALL AMERICAN PIPELINE LP PAA 0001581928 PAA GP Holdings LLC 333 CLAY STREET SUITE 1600 HOUSTON TX 77002 1 0 1 0 0001490401 Plains AAP, L.P. 333 CLAY STREET SUITE 1600 HOUSTON TX 77002 1 0 1 0 0001490402 Plains All American GP LLC 333 CLAY STREET SUITE 1600 HOUSTON TX 77002 1 0 1 0 0001581990 PLAINS GP HOLDINGS LP 333 CLAY STREET SUITE 1600 HOUSTON TX 77002 1 0 1 0 Common Units (Limited Partner Interests) 2022-03-31 4 J 0 11957 0 D 241473220 I By Plains AAP, L.P. Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), each limited partner of AAP, other than Plains GP Holdings, L.P. ("PAGP") and Plains All American GP LLC ("GP LLC"), has the right, from time to time, to cause AAP to redeem and cancel such partner's AAP Class A units in exchange for the distribution of an equal number of common units representing limited partner interests ("Common Units") of Plains All American Pipeline, L.P. ("PAA") held by AAP (the "Redemption Right"). In connection with the exercise of a Redemption Right, such limited partner must also surrender to PAGP an equal number of Class B shares of PAGP and Company Units of PAA GP Holdings LLC ("PAGP GP"). Effective March 31, 2022, KAFU Holdings (QP), L.P. exercised the Redemption Right with respect to 11,957 AAP Class A units, resulting in the cancellation of such AAP Class A units and the distribution of 11,957 Common Units from AAP to the redeeming partner. PAGP GP is the general partner of PAGP, which is the managing member of GP LLC, which is the general partner of AAP. Each of PAGP GP, PAGP and GP LLC may be deemed to indirectly beneficially own the Common Units directly held by AAP, but disclaim beneficial ownership of such Common Units except to the extent of their respective pecuniary interests therein. /s/ Ann F. Gullion, Assistant Secretary 2022-03-31