Building construction activity in Uponor's main markets, especially in Spain and the USA but also in the Nordic countries, has not reached expected levels, and the estimates of the full-year development of these markets have been significantly reduced, to a level that is clearly below what was the basis for Uponor's full-year guidance statement in April. As a result, Uponor has intensified actions to adjust production capacities serving these markets to match current demand. These actions include reductions in personnel as well as temporary production shutdowns. Due to the weaker market development, Uponor issues a new guidance for 2008 for its continuing operations, which exlude the net sales and operating profits of the UK/Irish infrastructure business: The company's continuing operations' net sales is not expected to quite reach last year's level and the operating profit is estimated to fall short of the 2007 level. Uponor's website (www.uponor.com/investors, IR material) offers a presentation with background information related to this announcement. UPONOR CORPORATION Board of Directors For more information, please contact Jan Lång, President and CEO, tel +358-20-129 2822 Jyri Luomakoski, CFO and deputy CEO, tel +358-40-5154498 Tarmo Anttila Vice President, Communications Tel. +358(0)20 129 2852 DISTRIBUTION Helsinki Stock Exchange Media www.uponor.com Uponor is a leading supplier of plumbing and heating systems for the residential and commercial building markets across Europe and North America, and a market leader in municipal infrastructure pipe systems in the Nordic countries. Uponor's key applications include floor heating and plumbing systems. The Group employs 4,250* persons globally. In 2007, Uponor's net sales (pro forma*) totalled 1,050 million euros, returning an operating profit of 12.9*%. Uponor Corporation is listed on the OMX Nordic Exchange in Helsinki, Finland. Http://www.uponor.com. *) Does not include the Infrastructure business in the UK and Ireland.