Jan 03, 2011. /Lesprom Network/. Ahlstrom has completed the divestment of Ahlstrom Altenkirchen GmbH in Germany to Interface Solutions, as the company said in a press release received by Lesprom Network. Ahlstrom announced earlier this month the sale of the Altenkirchen site to Interface Solutions, a portfolio company of Pennsylvania-based family owned private equity fund Susquehanna Capital. The value of the transaction is approximately Euro 6.5 million. Ahlstrom will book a non-recurring gain of approximately Euro 5 million from the sale in its 4Q 2010 financial result. Ahlstrom is a global leader in the development, manufacture and marketing of high performance nonwovens and specialty papers.