These ebuilds come from http://code.google.com/p/gentoo-china-overlay.
If you have some problems, go to the official site first.
cjk-sources : UTF-8 patchset + TuxOnIce + Gentoo patchset sources ( http://dev.gentoo.org/~dsd/genpatches/ http://www.tuxonice.net http://blog.chinaunix.net/u/13265/showart.php?id=1008020" K_EXTRAEINFO="For more info on cjk-sources and details on how to report problems, see: ${HOMEPAGE}. )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gentoo-china
For Paludis use this rsync : rsync://gentoo.zugaina.org/gentoo-china-portage
If you have a problem : ycarus(-at-)zugaina.org