The world's largest asset manager said the move reflects the firm's emphasis on the Middle East as part of its long-term strategy. BlackRock had more than $8 trillion in client assets under management as of 2022.

"Amin's distinguished career at Aramco, spanning more than four decades, gives him a unique perspective on many of the key issues facing our firm and our clients," Larry Fink, chairman and CEO of BlackRock, said in a statement.

"His leadership experience, understanding of the global energy industry and the drivers of the shift towards a low carbon economy, as well as his knowledge of the Middle East region, will all contribute meaningfully to the BlackRock Board dialogue," Fink added.