Soren Skou has taken to his keyboard in defence of free trade during the coronavirus pandemic.
In a column in the Danish daily Borsen, the AP Moller-Maersk chief executive urged countries to resist moves towards protectionism.
The scarcity of medical supplies must not be used as an excuse for nations to close in on themselves, he warned.
"This will be equivalent to increasing taxes because the products will be more expensive than necessary," the CEO wrote.
