Chinese baking powder?

[MikeG]

I mistakenly grabbed a bag of Lion Brand "Dried Baking Powder" in the store yesterday and didn't notice until I got home. I don't have a scanner/camera and can barely parse Chinese characters so I can't post its Chinese name, but it's slightly granular, like fine table salt, rather than the floury texture of Euro/American baking powder. Anyone know exactly what this stuff is, or failing that, for what/how it's used?

[fourunder]

meat tenderizing.

[MikeG]

Aha - that thought vaguely crossed my mind because of the texture. So it's basically extra fine granulated sodium bicarbonate?