RIYADH, May 21 (Reuters) - Saudi Arabian Mining Company Ma'aden has successfully extracted lithium from seawater, although not at levels that are commercially viable, and its project remains at the pilot stage, the company's CEO told Reuters on Tuesday.

"We are actually producing lithium from seawater now," Robert Wilt said.

Wilt, who is also the vice chairman of Manara Minerals, also said that company was not looking at acquiring diamond business De Beers. "We are not looking at De Beers at all," he said.

(Reporting by Pesha Magid; Editing by Jan Harvey)

((Maha.Dahan@thomsonreuters.com, @mahaeldahan;))