Can a flight attendant from China who works for Singapore Airlines get a Singapore green card?

You have to understand that the green card in Singapore is different from that in the United States.

Singapore green card refers to long-term visas (family members, spouses, accompanying students ...) and work permits. ...

Identity is equivalent to the American green card, which Singapore calls permanent residence and receives a "blue card" (blue ID card).

In my opinion, all foreigners (not limited to flight attendants or ethnic groups) who have officially served in Singapore Airlines for one year (excluding the training period) can apply for permanent residence in Singapore ~