Dec 12, 2011. /Lesprom Network/. Kotkamills announced that Hannu Wahlberg has been appointed Production Manager, Pulp Mill, effective as of 16 January 2012. Mr. Wahlberg will also continue in his previous position of Environmental Manager. Ari Mikkelä has been appointed Energy Manager, effective as of 16 January 2012. Mr. Mikkelä previously held the position of Production Engineer, Pulp Mill and Power Plant. Kotkamills is a forest products company based in Finland. The company specialises in laminating paper, matt coated bulky paper and sawn products.