Traveller holding passport from Chile, travelling from Singapore to Shanghai, round trip

Hi,

I'm living in Singapore for almost a year and I'm holding a passport from Chile.
I want to travel from Singapore to Shanghai for 3 days, then fly back from Shanghai to Singapore (round trip).
Am I eligible for the 72-hour Visa-free Transit permit?
If not, as a Chilean citizen, am I required to apply for a standard entry permit?

Regards,
Ivan