ABB Ltd

Share Issue/Capital Change • Jul 31, 2017

ZURICH, SWITZERLAND, JULY 31, 2017

Cancellation of 46.6 million shares completed

Based on the capital reduction approved at the Annual General Meeting on April 13, 2017 and following the required waiting period, 46,595,000 shares of ABB Ltd repurchased under a share buyback program were cancelled earlier this month.

Following the cancellation, the total number of ABB Ltd's issued shares is 2,168,148,264 (2,214,743,264 before cancellation).

As of last Friday, the company's holding of its own shares amounted to 34,126,899 which corresponds to 1.6 percent of the total number of issued shares in the company.

ABB (ABBN: SIX Swiss Ex) is a pioneering technology leader in electrification products, robotics and motion, industrial automation and power grids, serving customers in utilities, industry and transport & infrastructure globally. Continuing more than a 125-year history of innovation, ABB today is writing the future of industrial digitalization and driving the Energy and Fourth Industrial Revolutions. ABB operates in more than 100 countries with about 132,000 employees. www.abb.com

— For more information, please contact:

Media Relations Phone: +41 43 317 71 11 E-mail: media.relations@ch.abb.com Investor Relations Phone: +41 43 317 71 11 E-mail: investor.relations@ch.abb.com ABB Ltd Affolternstrasse 44 8050 Zurich Switzerland