I did send the guy an email as part of my price query what his Spirulina & Chlorella source was. He said he'd get back to me but hasn't - I won't order without knowing that. I posed the same question to your source.
In the past I've ordered it from mountainrose herbs, which gets it from India. High quality stuff, so yes, Trap, it does matter to me as well. If I can get good stuff for less, I will. I'm stocking up for a day when I can no longer get it.