Hi. My son is still in China. I immigrated to the USA 5 years ago but did not bring him because I wanted his early education to be Chinese. I came to the USA on K-1 and have the 10yr green card. My husband (US Citizen) and I now wish my son to come to start his middle school before the end of this year. Should we file I-130 or I-824? It seems I-824, but we are unsure of the "preference category" requirement. Thank you.