Do I need to be in Phils to apply for China Visa?

I am currently working in Hong Kong (but a Filipino passport holder with expired multiple entry china visa). Can I send my passport over to my parents in Phils and have them apply china visa on my behalf? Chinese embassy here in Hong Kong can only give me single entry so I want to apply in Phils to get multiple entry visa again. Hope you can advise. Thanks so much in advance!