Sika has two committees of the Board of Directors: the Audit Committee and the Nomination and Compensation Committee. The members of the Nomination and Compensation Committee are elected annually by the General Meeting. Re-election is possible.

The members of the Audit Committee as well as the chairperson of each committee are elected by the Board of Directors. Otherwise, the committees organize themselves. Information on the members of the committees can be found on page 42and 43 of the download version of the annua report (available athttps://www.sika.com/en/group/Publications/annual_reports01.html).

The Audit Committee mainly reviews the results of internal and external audits as well as risk management. The committee convenes at the request of its chairperson as required. Customarily, the Chairman of the Board of Directors and the CFO, as well as the CEO if necessary, take part in these meetings in an advisory capacity. Meetings are generally held every two to three months, lasting between three and four hours. In 2017, the Audit Committee met five times, with all members present at all meetings. More detailed information regarding the competences and activities of the Audit Committee can befound in the 5th chapter of the Organizational Rules of Sika AG and the Sika Group (available at https://www.sika.com/en/group/investors/corporate-governance/organizational-rules.html). The Nomination and Compensation Committee prepares personnel planning at the level of the Board of Directors and GroupManagement and handles matters relating to compensation.

One of the central tasks of the Nomination and Compensation Committee is succession planning for the Board of Directors and Group Management. The committee convenes at the request of its chairperson as required. Usually the Chairman of the Board of Directors and the CEO participate in these meetings in an advisory capacity, insofar as they are not themselves affected by the items on the agenda. Meetings are generally held on a bimonthly basis, lasting between one and a half and two and a half hours.

In 2017, the Nomination and Compensation Committee met six times, with all members presentat all meetings. More detailed information regarding the competences and activities of the Nomination and Compensation Committee can be found in art. 9 of the Sika Articles of Association (available at https://www.sika.com/en/group/investors/corporate-governance/articles-of-association.html), the 6thchapter of the Organizational Rules of Sika AG and the Sika Group (available at https://www.sika.com/en/group/investors/corporate-governance/organizational-rules.html) as well as on page 55 et seqq. of the download version of the annual report (availableat https://www.sika.com/en/group/Publications/annual_reports01.html).