2. Ms. A's boss asked her to have sex with him when they were on a business trip in China. Is she protected under the SDO if sexual harassment takes place outside Hong Kong?
Yes. With reference to section 11 and section 14 of the SDO, if she is employed by a Hong Kong company and works mainly or wholly in Hong Kong (i.e. she only takes business trips outside Hong Kong occasionally), the harasser is still liable for sexual harassment even though the unlawful act is committed outside Hong Kong.
For more information on how to deal with sexual harassment, please refer to the relevant question and answer.