Worry about mines
Explosive mines have been deployed off the coast of Ukraine during the war.
This means a series of problems for the shipping companies that have to pick up goods in Ukrainian ports.
First, the sharp mines are considered by many to pose a mortal danger to the ships and their crew.
This despite the fact that both sides, Ukraine and Russia, have taken it upon themselves to create safe and mine-free corridors.
Russian attacks
The export agreement has been described by the UN as a kind of ceasefire.
But despite this, Russia has on two occasions attacked Odessa, an important Ukrainian port city.
However, the missiles that hit should not have caused any major material damage.
Russian authorities have claimed that the attacks targeted military targets and not export infrastructure.
Despite this, the attacks have caused great international consternation and have been condemned by, among others, the UN.
There is, not least in Ukraine, a concern that Russia will not stick to the agreement and that it will therefore collapse.
Unclear about insurance
The mines, and the war itself, have created uncertainty in the insurance market.
This as it is still not entirely clear what prices will apply to the ships traveling in the war-torn waters.
It is very possible that extra fees will be introduced for these ships, several players in the shipping market told CBS News.
Lack of sailors
The risks involved in the journey to Ukraine may mean difficulties in finding willing personnel to man the ships.
This is stated by Henrik Jensen, CEO of the company Danica, for Reuters.
Danica works with crew solutions for ships in Ukraine, among others.
About 80 ships are still stuck in Ukraine and most of their crews have been evacuated.
Thus, a significant amount of replacement staff must be recruited to get them out.
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A Russian strategy has been to starve Ukraine economically, according to Oscar Jonsson, PhD in Russian warfare.
Photo: TT/SVT