Thread:Qunow/@comment-25280240-20151013092615/@comment-26154973-20151014175853

https://www.facebook.com/ChinjufuChan/info?tab=page_info "Feel free to use our translations with proper citation", they are used regularly in patch notes on this wikia, so my guess it's ok. Don't know about modifications though, if you want to change something, then maybe it's better to provide a new translation instead of changing while still citing them.