Wausau Paper, Mosinee, Wis., signed a definitive agreement to sell its specialty paper business to a new company sponsored by KPS Capital Partners L.P., a New York-based private equity firm. The new company will be known as Expera Specialty Solutions, LLC.

“This transaction accomplishes all of our key objectives—divesting our paper business in a way that creates value for our shareholders, creating a specialty business under new ownership with the scale and product breadth to compete globally and narrowing our focus to accelerating growth in our tissue business,” says Hank Newell, president and CEO of Wausau Paper.

KPS also entered into a definitive agreement to acquire the specialty paper business of Packaging Dynamics Corp., which operates paper mills in De Pere and Kaukauna, Wis. Expera will combine the Thilmany business with Wausau Paper’s specialty paper business to create a leading North American manufacturer of specialty paper products for the food packaging, industrial and pressure-sensitive release liner segments. A collective bargaining agreement covering employees at the Mosinee, Rhinelander and Kaukauna facilities has been negotiated and ratified. The collective bargaining agreement and the Thilmany acquisition agreement were both conditions to Wausau Paper entering into its agreement with KPS.

Key highlights of the transaction are as follows:

• The transaction will result in net cash proceeds to Wausau Paper of approximately $110 million after settlement of transaction-related liabilities, costs and taxes.

• Expera will acquire the assets of Wausau Paper’s Rhinelander and Mosinee mills; the assets of the company’s Brainerd mill are not included in the transaction.

• Wausau Paper will retain defined benefit pension and other post-retirement benefit obligations, however effective with the closing of the transaction, approximately $41 million of future liability will be eliminated.

• Wausau Paper will not hold any equity ownership in Expera.

• Wausau Paper will have the opportunity to receive a contingent payment that would be equal to what the holder of a 5% equity interest in Expera would receive if certain performance thresholds and KPS liquidity events occur.

The transaction received required regulatory approval under the Hart-Scott-Rodino Antitrust Improvements Act. Other customary conditions to closing, including third-party financing, remain. The Wausau Paper sale to Expera is also conditioned upon Expera completing the acquisition of the Thilmany business. While the company expects to finalize the transaction in the second or third quarter of 2013, there can be no certainty or assurance about the timing or completion of a transaction.