Applying for a Z visa

Greetings Sir/Ma,
I am a Cameroon who was having a student X1 type in China for obout a year and 6 months today, but my services are highly needed by a Chinese employer who want to give me employment credentials to obtain a Z type, since i am no longer about to continue my studies, as my X1 was about to expire, i took a temporal stay permit since i was about to visit Singapore. I am now in Singapore for a visit, can i apply for my Z type in Singapore.
Kind regards,
Fotabe