Yes selling sex is illegal, not under the criminal law but under administrative law. Working as a sex worker while living with HIV or while having an STI is also a criminal offence.
Yes - it is offence under criminal law to organise or profit from sex work, this law also applies to people such as managers of hotels, restaurants, bars and taxi companies who are involved in organising.
No
No
No
No
UNDP et al (2012) Sex Work and the Law in Asia and the Pacific: Laws, HIV and human rights in the context of sex work, available at http://www.undp.org/content/dam/undp/library/hivaids/English/HIV-2012-SexWorkAndLaw.pdf Law on Penalties for Admnistration of Public Security - http://www.china.org.cn/china/LegislationsForm2001-2010/2011-02/11/content_21899252.htm https://www.hhrjournal.org/2017/12/hiv-sex-work-and-law-enforcement-in-china/ The Realistic Problem to China's Prostitution Problem - https://www.sixthtone.com/news/1001266/the-realistic-response-to-chinas-prostitution-problem