This is typical bullshit marketing propped up by telco equipment manufacturers if not the telcos themselves. The link between Korea & Finland is the good old I

This is typical bullshit marketing propped up by telco equipment manufacturers if not the telcos themselves. The link between Korea & Finland is the good old Internet - a mesh of Ethernet and fibre cables. No 5G there. 5G could be used as the last mile but so can 4G and Wi-Fi, and in this case the latter technologies are just as good considering you don't actually need high bandwidth, merely low and stable-enough latency (a well-tuned and uncongested 4G network is good enough). 5G is absolutely not the enabler in controlling a factory across the world - this has been possible since the beginning of the Internet.