PrimeStone, Capital PrimeStone Capital - Letter to the Board of Directors of Smurfit Kappa Group plc 07.08.2025 - 18:08:46 PrimeStone Capital LLP United Kingdom Germany France Switzerland Netherlands Italy Spain Belgium Austria England View original content:https://www.prnewswire.co.uk/news-releases/primestone-capital--letter-to-the-board-of-directors-of-smurfit-kappa-group-plc-302020380.html