Well there is already a Chinese port there that is used for the Maritime silk road but I'm sure this is an opportunity for them to create more. I feel like it's too late already, Biden is weak and I don't think there is any win for them to get involve.
There is also a Mattala Airport at the south of the country, funded by loans from China. Yet, there hasn't been much use of it, and it pretty much lose its intended purpose. I used to visit Sri Lanka in 2013, with the outbound flight making a (virtual) stop (no disembarking) there, and when I look out of the window, there's nothing much that indicates the potential of the airport or the surrounding area, despite it being billed as "international" airport.