Interesting to see how much they are willing to invest on bitcoin though, it said they manage a net portfolio of $306 billion, that's huge, but I speculate that they could be just testing some grounds on bitcoin and could be investing in millions initially.
I did a bit of digging, and unfortunately the amount of money they allocated to bitcoin seems to still be unknown.
One thing's for sure, they seem to have been interested in the cryptocurrency industry as a whole:
https://asia.nikkei.com/Spotlight/Cryptocurrencies/Singapore-s-Temasek-joins-Facebook-backed-Libra-currencyYep, that's why I speculate that it maybe just a small portion has been allocated for now because the risk involved.
Maybe we can get a clearer picture later and see how much they really did invest out of that $300 billion worth of funds they got. This guys are expert in the field of investment, their portfolio is very diverse so a new venture like in crypto could be small at the very onset and then grow overtime.