Ion Beam Applications, SA

Declaration of Voting Results & Voting Rights Announcements • Apr 20, 2018

IBA – DATA CONCERNING TRANSPARENCY

Heading II of the law of May 2, 2007 and the Royal Decree of February 14, 2008

Louvain-la-Neuve, Belgium, April 20, 2018 - IBA (Ion Beam Applications SA), the world's leading provider of proton therapy solutions for the treatment of cancer, communicates today the basic and additional data as per Article 15 §1 al.1 of the Transparency Law, following its capital increase (further to exercises of stock options) dated April 19, 2018.

Communication of the basic data as per Article 15 §1 al.1 of the Law

    	Total capital: Total number of securities conferring the voting right: Total number of voting rights (= the denominator): Total number of securities conferring the voting right, by category: Total number of voting rights, by category:	EUR 42 093 939,34 29 991 246 29 991 246 N/A N/A
Communication of the additional data as per Article 15 §1 al.2 of the Law
 	Total number of convertible bonds conferring the voting right: Total number of rights, materialized or not by certificates, giving the	0
	right to subscribe to newly issued securities conferring the voting right (e.g. warrants):	330 719
	Total number of voting rights which would result from the exercise of these conversion or subscription rights:	330 719

Total number of shares without voting right: 0

Statutory thresholds as per Article 18 of the Law

The applicable thresholds as follows: three percent, five percent, ten percent, fifteen percent and so on by brackets of five percent

About IBA

IBA (Ion Beam Applications S.A.) is a global medical technology company focused on bringing integrated and innovative solutions for the diagnosis and treatment of cancer. The company is the worldwide technology leader in the field of proton therapy, considered to be the most advanced form of radiation therapy available today. IBA's proton therapy solutions are flexible and adaptable, allowing customers to choose from universal full-scale proton therapy centers as well as compact, single room solutions. In addition, IBA also has a radiation dosimetry business and develops particle accelerators for the medical world and industry. Headquartered in Belgium and employing about

Press release | 20/04/2018

1,500 people worldwide, IBA has installed systems across the world.

IBA is listed on the pan-European stock exchange NYSE EURONEXT (IBA: Reuters IBAB.BR and Bloomberg IBAB.BB). More information can be found at: www.iba-worldwide.com

For further information, please contact:

IBA Stephanie Bauwin Legal Counsel +32 10 203 924 Stephanie.bauwin@iba-group.com

Press release | 20/04/2018