02 Oct 2023 --- Smurfit Kappa has invested €5 million (US$5.29 million) into building a new state-of-the-art purification and wastewater treatment plant in Belgrade, Serbia, which it says is the first of its kind in the country. The plant is located on the site of Smurfit Kappa’s Belgrade paper mill, which was acquired in 2019. The plant is part of a series of investments worth €129 million (US$136 million) in Smurfit water treatment facilities throughout Europe and the Americas since 2005.