The story
In 1989, the state-run enterprise PTT became Royal PTT Netherlands (Koninklijke PTT Nederland: KPN), and the company was incorporated. In 1993, mail offices were privatised, and KPN was listed on the stock exchange in 1994. In 1996, the Australian company TNT Ltd. was obtained through acquisition, and KPN's postal service and TNT merged to form TNT Postal Group (TPG), later renamed TNT N.V.
The national postal service of the Netherlands was called PTT Post until 2002, then TPG Post until October 16, 2006, then finally renamed TNT Post. The old red TPG mailboxes were changed to the new orange TNT mailboxes throughout the country.
In May 2011, due to growing divergence of two major TNT N.V. divisions, mail and express, TNT N.V. changed its name to PostNL after demerging TNT Express. TNT Post was then also rebranded PostNL.
In 2016, FedEx Express, with the approval of the EU, acquired the split-off TNT Express for an amount of $4.8 billion.
From Wikipedia’s article on Koninklijke TNT Post, shared under CC BY-SA 4.0.3