How a Filipino apply for business visa valid for at least 6-months multiple entry?

Hi. I'm a filipino e-pass holder and will be on business trip for atleast 6 months to Beijing. I already went to China twice on a tourist visa but the last time i went there (Dec 2009) i had to go back to Manila to apply for my tourist visa. Is it still the same case now? Or i can go on and apply my visa here in Singapore? Thanks.