Kazakh studying in Korea, how many months has to have on my Alien card to apply for Chinese visa?

Hi I am a Kazakh girl, currently I am studying in Korea I have an alien card (Temporary permission to live here) how many months does my alien card have at least to apply to Chinese Tourism visa. Because I listen that for other foreigners is 6 months at least. but in my case neighbor country of China does my alien card has to prove also 6 months or how many? thanks.