After mega-divorce, MacKenzie Bezos joins billionaire philanthropist club

MacKenzie Bezos, soon-to-be ex-wife of Amazon founder Jeff Bezos, has promised to donate half her fortune to charity, joining the ranks of the world's ultra-wealthy philanthropists, the Giving Pledge has announced.

The charitable organisation, founded in 2010 by Warren Buffett and Bill Gates, listed MacKenzie Bezos, an American, among 19 new signatories of the pledge from China, Switzerland, the United Arab Emirates and Britain.

She instantly became one of the world's wealthiest individuals in April, gaining a net worth estimated at USD36 billion after finalising the terms of her divorce with Jeff Bezos, the world's richest man.

"In addition to whatever assets life has nurtured in me, I have a disproportionate amount of money to share," MacKenzie Bezos said in a letter announcing that she was joining the pledge on Tuesday.

"My approach to philanthropy will continue to be thoughtful. It will take time and effort and care. But I won't wait. And I will keep at it until the safe is ...