Southeast Asia’s highest-capitalized startup is sitting on even more money from investors today after ride-hailing Grab announced it has raised $300 million from Invesco.

The deal takes Singapore-based Grab $7.5 billion raised to date. The money is part of its ongoing — feels-like-everlasting — Series H round which was started last June via a $1 billion capital injection from Toyota.

The round swelled to $4.5 billion thanks to contributions from a range of partners throughout 2018 and early 2019, then Grab said in April that it would add a further $2 billion to reach a $6.5 billion close before this year is out. This investment from Invesco is the first piece of that newest tranche to be announced, but there’s plenty happening under the surface, including a potential investment from PayPal, Ant Financial and others in a spinout of Grab’s financial services.

Grab declined to comment on the status of its Series H, and how much it has raised for the round so far.

Getting back to today’s news and, despite a relatively dry-looking announcement, there is an interesting takeaway to be found here.

Yes, this isn’t a SoftBank Vision Fund sized round — that $1.5 billion deal closed earlier this year — and it lacks the strategic significance of investments from backers like Toyota, Booking.com or Microsoft, but it does represent a doubling down on Grab from Invesco.

The firm merged with emerging market-focused fund Oppenheimer back in May. Oppenheimer — which has close to $40 billion in assets under management for its developing market fund alone — was among the participants in an initial $2 billion raise for that Series H, and now the merged entity is coming back to increase its position.

That first deal (from Oppenheimer) was $403 million, Grab said, so this new addition takes its spend on Grab to over $700 million. It also comes at an interesting time for the firm, which is reported to have reorganized its management team following the completion of the merger.

Based on that clearing of the decks/realignment, the decision to double down on Grab is a positive validation for the ride-hailing company. While it might not be a household name to those outside financial markets, Grab president Ming Maa played up Invesco as “one of the smartest investors in developing markets” in a statement released alongside news of the investment.

Grab acquired Uber’s regional business last year to become Southeast Asia’s undisputed ride-hailing leader, but it perhaps didn’t reckon on its local rival Go-Jek mounting a bid to finally expand its service regionally.

Having built a strong presence in Indonesia — where it pioneered ‘super app’ concepts like services on-demand and payments in the context of ride-hailing — Go-Jek has since expanded into Vietnam, Thailand and Singapore, with the Philippines also in its sights. Those moves were fuelled by investment from the likes of Tencent, Google and Warburg Pincus . As it seeks to go further and deeper in those markets, Go-Jek is currently raising a round for growth that is expected to reach $2 billion, half of which it said it had secured in January.

That accumulation of cash seemed to spark a call to arms for Grab, which turned its Series H into a gargantuan rolling round after increasing the overall round target first to $5 billion and then to $6.5 billion.

Uber may have decided to leave Southeast Asia, but the ride-hailing industry in the region is still as fascinating as ever.