Shared office space provider WeWork has secured an additional $3 billion in funding from Japan’s SoftBank Group, according to an investor presentation seen by Reuters.

The latest funding was in the form of a warrant, under which SoftBank will pay WeWork $1.5 billion on Jan. 15 and the remainder on April 15.

WeWork in July said it had raised $500 million from investors, including Temasek Holdings and SoftBank Group.

SoftBank, which runs the world’s biggest private equity fund, was in discussions to buy a majority stake in WeWork, a source told Reuters in October.

New York-based WeWork leases office spaces and rents them out to individuals and startups, and has said it hopes to boost its membership in China to 1 million by 2021.

In its first-ever release of financial results in August, the privately held firm said its net losses jumped to $723 million over the first half of 2018, from $154 million a year earlier.

The SoftBank Vision Fund has investments in several startups that include ride services firm Uber Technologies .

The loss-making startup WeWork and the Japanese company are closely entwined, with hundreds of SoftBank staff using space at the two companies’ Japanese joint venture.