Global supply chains have been crippled since Tuesday, after the 400-metre Panama-flagged Ever Given ship got stuck sideways in the Suez.
The result has been chaos, with dozens of ships backed up and analysts warning of a severe impact on global trade if the vessel can not be dislodged.
A ballast tank at the bow of the ship has also been damaged, and the vessel will have to be inspected once it is freed, two people familiar with the salvage operation said.
If that doesn't work, the company will remove hundreds of containers from the front of the ship to lighten it, effectively lifting the ship to make it easier to pull free, Berdowski said. "The name of the giant ship container IS ' Ever Given".
The ship is owned by a Japanese company, operated by a Taiwanese firm, its crew is Indian, and it sails under a Panamanian flag. There is no problem with its rudders and propellers.
"We sincerely apologize for causing great concern", said Yukito Higaki, president of Shoei Kisen Kaisha Ltd., which owns the 220,000-ton vessel.
The company aims to free the ship "tomorrow (Saturday) night Japan time", he added.
Authorities are still determing how to move the ship.
The blockage has caused a huge traffic jam of more than 300 ships along the 193-kilometer (120-mile) canal, and caused major delays in the delivery of oil and other products.
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However, as is the case on weekends, the province says more than 10 per cent of hospitals have not reported their numbers. Test positivity, the percentage of tests coming back positive, is at 3.8 per cent.
But the port side of the ship's bow remains stuck in the sand and mud, noting that 11 tugboats were working throughout Saturday alongside dredging operations to clear the sediment.
They will be joined Sunday by two additional tugs from Italy and The Netherlands.
But the vessel with gross tonnage of 219,000 and deadweight of 199,000 has yet to budge, forcing the global shipping giant Maersk and Germany's Hapag-Lloyd to look into rerouting around the southern tip of Africa.
Asked about when they expected to free the vessel and reopen the canal, he said: "I can't say because I do not know".
The blockage was holding up an estimated $9.6 billion worth of cargo each day between Asia and Europe, it said.
So far, 14 tugboats have aided in the moving of the container, and around 20,000 cubic meters of sand have been dredged from beneath the ship.
Egyptian Prime Minister Mostafa Madbouly on Saturday thanked foreign partners for offers to help refloat the ship.
Read also: Why would the blockade of the Suez Canal leave you without toilet paper? Its temporary closure might affect 10-15% of world container throughput, Moody's Investors Service has estimated.
The magnitude of the current blockage is much bigger because goods shipped in containers have been the biggest casualty, hurting global markets trying to bounce back from the pandemic.