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Amazon’s soaring share price has increased CEO Jeff Bezos’ net worth to more than 2 billion, a new record that pushes his financial wealth back above its levels prior to his divorce settlement last year, according to the Bloomberg Billionaires Index.

American stocks regained some of the ground surrendered on Monday that was inspired by uncertainty over trade policy. Investors, however, remain concerned that trade tensions between the US and China and the European Union could weigh down the world economy.

Among the projects signed at China Tianjin International Fair for Investment and Trade, 12 were related to high technology like artificial intelligence and biotechnology, with an investment of 1.68 billion yuan, according to the event organizer.

Among the institute's major tasks is to guide enterprises to attach more importance to environmental protection, enhance environmental management and promote joint research on green development, climate change, biodiversity protection and green finance, said Zhou, who is also the institute's executive director.

Amazon’s home state of Washington boasts the largest concentration of employees at more than 40,000, a figure that doesn’t include seasonal workers. California, where Amazon just expanded with a big new lease in San Francisco, is second at more than 30,000 people.