Four thousand artifacts believed to date back to the 13th century, including coins and ceramics, were recovered undamaged, China's state-run Xinhua news agency said, quoting local reports.
The Quang Ngai provincial steering board for archaeological exploration said the artifacts were retrieved from the seabed during an excavation June 4-23.
The ship, which measures 67 feet long and 18 feet wide, contained 13 cargo holds.
Remnants gathered from holds 4 to 6 prove the ship caught fire before sinking, archaeologists said.
"The hulk itself, which boasts unique, rare structure, is a treasured antique, which contributes massively to our knowledge of antique ships in Vietnam and worldwide," Nguyen Dinh Chien, deputy head of the National History museum, said.
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