Embattled Wal-Mart vice chairman Eduardo Castro-Wright has resigned from the board of MetLife, the largest life insurer in the United States, the company said on Tuesday.

Over the past weekend, I notified you of recent events that will require my immediate and personal attention, Castro-Wright said in a letter to MetLife Chief Executive Officer Steve Kandarian, a copy of which was filed with securities regulators.

Accordingly, I now must focus my energy in spending personal time with my family and in protecting my good name and business reputation, he added at the end of the letter.

Castro-Wright was named in a weekend New York Times report as a key figure in an alleged foreign bribery scandal at Wal-Mart.

Castro-Wright, who joined the board in March 2008 and whose term was not due to expire until 2014, sat on three committees: investment, compensation and governance and corporate responsibility.

His 2011 compensation was $259,124 in cash and stock awards, according to MetLife's proxy. The company also paid premiums on a $200,000 life insurance policy for him. He held nearly 17,000 MetLife shares as of March 1, the proxy noted.

MetLife shares rose nearly 0.5 percent to $35.55 in late trading. The shares rallied in the minutes after the company announced Castro-Wright's departure.

(Reporting By Ben Berkowitz; Editing by Gary Hill; editing by Carol Bishopric)

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