![CEO Jan Jenisch of Swiss chemicals group Sika gestures as he addresses the company's annual news conference in Zurich January 27, 2015. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: BUSINESS CONSTRUCTION BUSINESS LOGO Stock CEO Jan Jenisch of Swiss chemicals group Sika gestures as he addresses the company's annual news conference in Zurich January 27, 2015. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: BUSINESS CONSTRUCTION BUSINESS LOGO Stock](https://c8.alamy.com/comp/2CJE0PF/ceo-jan-jenisch-of-swiss-chemicals-group-sika-gestures-as-he-addresses-the-companys-annual-news-conference-in-zurich-january-27-2015-reutersarnd-wiegmann-switzerland-tags-business-construction-business-logo-2CJE0PF.jpg)
CEO Jan Jenisch of Swiss chemicals group Sika gestures as he addresses the company's annual news conference in Zurich January 27, 2015. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: BUSINESS CONSTRUCTION BUSINESS LOGO Stock
![Paul Haelg (L), chairman of the board and CEO Jan Jenisch of Swiss chemicals group Sika, address a news conference in Zurich, Switzerland October 28, 2016. REUTERS/Arnd Wiegmann Stock Photo - Alamy Paul Haelg (L), chairman of the board and CEO Jan Jenisch of Swiss chemicals group Sika, address a news conference in Zurich, Switzerland October 28, 2016. REUTERS/Arnd Wiegmann Stock Photo - Alamy](https://c8.alamy.com/comp/2E6FCG2/paul-haelg-l-chairman-of-the-board-and-ceo-jan-jenisch-of-swiss-chemicals-group-sika-address-a-news-conference-in-zurich-switzerland-october-28-2016-reutersarnd-wiegmann-2E6FCG2.jpg)
Paul Haelg (L), chairman of the board and CEO Jan Jenisch of Swiss chemicals group Sika, address a news conference in Zurich, Switzerland October 28, 2016. REUTERS/Arnd Wiegmann Stock Photo - Alamy
![CEO Jan Jenisch of Swiss chemicals group Sika gestures as he addresses the company's annual news conference in Zurich January 27, 2015. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: BUSINESS CONSTRUCTION BUSINESS LOGO Stock CEO Jan Jenisch of Swiss chemicals group Sika gestures as he addresses the company's annual news conference in Zurich January 27, 2015. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: BUSINESS CONSTRUCTION BUSINESS LOGO Stock](https://c8.alamy.com/comp/2CM74C0/paul-haelg-chairman-of-the-board-and-ceo-jan-jenisch-r-of-swiss-chemicals-group-sika-await-the-companys-annual-news-conference-in-zurich-january-27-2015-reutersarnd-wiegmann-switzerland-tags-business-construction-business-logo-2CM74C0.jpg)