China’s DJI, the world’s largest consumer drone maker, is in talks with investors to raise a new round of funding at a valuation of $15 billion, people familiar with the discussions said. The amount raised will likely range between $500 million and $1 billion, the people said, although the deal hasn’t been finalized. The fundraising could be a combination of equity and debt, said one of the people who was briefed by DJI. It would be by far the biggest round ever raised by DJI, whose previous $75 million fundraising from Accel Partners in 2015 valued it at $10 billion.