APAC data center firm DayOne has secured new equity financing.

The company this week announced the final closing of its Series C equity financing with total gross proceeds of $4.5 billion.

The Series C round was led by existing investors Coatue and Hillhouse, now DayOne’s two largest shareholders, with participation from notable new investors including the Indonesia Investment Authority (INA) and Achi Capital Partners.

DayOne said the funding will allow the company to accelerate expansions in key markets.

Formerly known as GDS International, DayOne rebranded as an independent company last year. The company is reportedly looking to go public in the near future.

“DayOne may continue to consider additional equity and debt financing options in the private and public markets, subject to its funding needs, market conditions, and other considerations,” the company said this week.

Its portfolio currently comprises more than 500MW of data center capacity in service and under construction, and more than 500MW held for future development across sites in Hong Kong, Singapore, Malaysia (Johor), Indonesia (Batam), and Japan (Tokyo). The company recently broke ground on a site in Thailand and another in Singapore. In August, it made its first foray into markets beyond Asia, announcing a campus in Lahti, Finland.

In this week’s funding announcement, DayOne makes reference to Spain as a key market, but has yet to detail any planned projects in the country.

The company hired former AWS and Data4 director Juan Carlos Vaamonde as its general manager for Spain last year, and his hiring for a number of roles in the country – including engineering roles in Zaragoza.