I bought some Taiwan ADR listed in NYSE early last year. Last year, I received the dividend without any tax deduction. However, today I just received this year dividend with 21% tax deduction, anyone know what is the reason? Can I claim back the tax deduction?

How about other US stocks and ETF like Microsoft and S&P 500 ETF? Are all the dividend tax (usually 30%) can be claimed back?
Thank you.

Investing.com UMC Dividends