I support a bunch of charities in the US. I recently read a bit about the situation with dogs in mainland China, so I did some more research. In Taiwan, humane slaughter laws are only just recently being passed.
I tried to find some charities to send my money to. Please take my money! But alas, I didn’t find much.
CAPM. Mainland organization, no obvious way to donate money.
Environment and Animal Society of Taiwan They have a page to donate money, but it is in Chinese and I have no idea if I can give money from the US.
Duo Duo Project This appears to be a small US charity that does projects and events related to animal rights in mainland China. It takes US donations via PayPal.
Human Society International This is related to HSUS. I don’t know if my donations to HSUS indirectly benefit HSI or if I need to donate to them separately. Anyhow, they take donations is USD and operate in many countries including China.
Animals Asia Works on bear bile issues, and other Asian animal rights projects.
The safe winner is HSI, since they funnel money to smaller groups that I can’t reach anyhow. I plan to give to HSI and the Duo Duo Project.
NB. If you are donating to an international charity, you probably won’t be able to deduct it on your income taxes unless they are registered with the IRS.