A newly arrived specialist tug will join efforts on Sunday night to float the giant container ship stranded in the Suez Canal, the ship's technical manager Bernhard Schulte Shipmanagement (BSM) said in a statement.
"Further attempts to re-float the vessel will continue this evening once the tug is safely in position along with the 11 tugs already on site," the statement said.
An additional dredger the THSD Causeway would arrive from Cyprus by March 30, it said.
The Dutch-flagged Alp Guard, a specialist tugboat, arrived at the location on Sunday.
The Italian-flagged Carlo Magno was also close, having reached the Red Sea near the city of Suez early Sunday, satellite data from MarineTraffic.com showed.
The tugboats, along with at least 10 others already there, will nudge the 400-meter-long (quarter-mile-long) Ever Given as dredgers continue to vacuum up sand from underneath the vessel and mud caked to its port side, said Bernhard Schulte Shipmanagement, which manages the Ever Given.