A man walks by a house hit in recent fighting in Khartoum, Sudan. AP
Since mid-April, Sudan has been gripped by a conflict pitting army chief Abdel Fattah al-Burhan against his former deputy, paramilitary commander Mohamed Hamdan Daglo.
The war has claimed at least 13,000 lives according to a conservative estimate by the Armed Conflict Location & Event Data project, and the United Nations says more than seven million people have been displaced.
Among the companies added to an EU visa ban and asset freeze, blacklist were three controlled by the Sudanese armed forces.
Those included the Defense Industries System conglomerate, which Brussels said had estimated revenues of $2 billion in 2020.
Three firms controlled by Daglo and his brothers were also targeted.
"The EU remains deeply concerned about the humanitarian situation in Sudan and reaffirms its steadfast support for, and solidarity with, the Sudanese people," the 27-nation bloc said in a statement.
Both sides have been accused of war crimes, including the indiscriminate shelling of residential areas, torture, and arbitrary detention of civilians.
Diplomatic efforts aimed at trying to halt the bloodshed have so far failed.
Short link: