Unlike Finland's traditional provinces, Kymenlaakso emerged as a distinct region much later, a testament to its ever-evolving character.

Sawmills and paper mills sprouted like mushrooms along the riverbanks, laying the groundwork for Kymenlaakso's future industrial dominance.

The 19th century brought a shift in political winds as Kymenlaakso became part of the Grand Duchy of Finland in personal union with the Russian Empire.

The early 20th century witnessed another significant development – the rise of a powerful labor movement, a reflection of the growing importance of the working class in Kymenlaakso's industrial landscape.

Undeterred, Kymenlaakso is actively pursuing economic diversification, attracting new businesses and exploring new avenues for growth.