SQM and Australia's richest person Gina Rinehart's Hancock Prospecting, already Azure's two largest shareholders, teamed up in December to buy the lithium developer.
In December, Nippon agreed to buy US Steel for roughly $15 billion but the deal faces an uphill battle to approval amid bipartisan opposition in a US election year.
The firm’s primary listing could come into focus due to a lack of shareholder support for a plan to split off its coal business and list it separately in New York.
The almost $1.2bn Salares Norte mine faced some unique challenges, including relocating a handful of endangered rodents, rocketing costs and technical delays.