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Change in the reporting of The Capital Group Companies’ holdings - a notification under Ch2, Sec10 of the Securities Market Act

Uponor Corporation       Stock Exchange release 20 Sept 2012 18.45

Change in the reporting of The Capital Group Companies’ holdings - a notification under Chapter 2, Section 10 of the Securities Market Act

Uponor Corporation has received a notification referred to in Chapter 2, Section 9 of the Securities Market Act from The Capital Group Companies, Inc., in a letter dated 4 September 2012. According to the notification, as a result of the corporate re-organisation effective 1 September 2012, the disaggregation exemption granted by the Finnish Financial Supervisory Authority no longer applies, and Capital Research and Management Company and Capital Group International Inc. will no longer report relevant holdings separately. The holdings under management will be reported in aggregate by the group’s parent company, The Capital Group Companies Inc.

According to the notification, the total holding and voting power of The Capital Group Companies Inc. in Uponor Corporation amounted to 8.8508% after the change in holdings reporting on 3 September 2012.

The Capital Group Companies, Inc’s taxpayer I.D. is 86-0206507.

Uponor Corporation

Tarmo Anttila
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Tel. +358 20 129 2852

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Uponor is a leading international provider of plumbing and indoor climate solutions for residential and commercial building markets across Europe and North America. In Northern Europe, Uponor is also a prominent supplier of infrastructure pipe systems. Uponor offers its customers solutions that are sustainable and safe and reliable to own and operate. The Group employs approx. 3,100 persons, in 30 countries. In 2011, Uponor's net sales totalled ca €800 million. Uponor Corporation is listed on NASDAQ OMX Helsinki in Finland. http://www.uponor.com.