Further readings:

▻ Lucy Hooker, BBC News, 11 October 2017: Four solutions to the disposable coffee cup problem
▻ Packaging Europe, 31 January 2018: Holistic approach needed to solve coffee cup recycling problem
▻ Jaakko Liikanen, Paperi Ja Puu, 7 December 2016: Zero-plastic drinking cups from Kotka

So, there's another Finnish company you may want keep eye on: Kotkamills. They have somewhat only just started, but hopefully they, or at least their innovation, becomes worldwide. Last time I read news about the innovation (in Finnish), I found out they did not apply patent for it. And that is because patents are public, and therefore also sort of a idea leak.