Stora Enso is actually a merger of two companies; Swedish Stora and Finnish Enso.
It’s Stora that was founded in 1288 with the copper mine in Falun (https://en.m.wikipedia.org/wiki/Falun_Mine), which produced 2/3 of Europe’s copper needs at one point in time.
It was also the world’s first stock company apparently, and it’s still in business.