Family Tour

Hello,

I would like to ask if what will be the requirements needed if we are touring as a group together with my Aunts and Uncles. The problem is my two aunts are housewives and my two uncles are unemployed however the person who will pay for this trip is my Aunt which is based in the US. She already purchased the Hotel and Plane Tickets, we also requested for an Authorized Travel Agency for an Invitation Letters since my aunts and uncles from the Philippines doesn't have any financial documents to show at the embassy like ITR, and Bank Statements. So, what else do we need? Do I still need to ask for a sponsorship letter from my aunt?Just in case she doesn't want to give her Bank Statements/Certification does the ITR in the US will suffice? in lieu of the Bank Statement? Please I need your answers cause I'm planning to apply this week at the Chinese Embassy it's just now that out of curiosity I visited again the blog sites like this regarding in applying a Chinese Visa. I hope someone will help me on this concern. Thanks