X0206 3 2016-11-01 0 0000004281 Arconic Inc. ARNC 0001509955 Ramundo Katherine H 390 PARK AVENUE NEW YORK, NY 10022 0 1 0 0 EVP, CLO & Secretary Common Stock 18747 D Exhibit List Exhibite 24 - Power of Attorney - Katherine H. Ramundo /s/ Margaret Lam (Assistant Secretary), by power of attorney 2016-11-14