Dunno. The guy probably resold it, tbh.
One of those things where I had a pile of old ram I didn't need and was bored of storing. None of my friends wanted it, so found someone that would take it.
I couldn't be bothered selling it, cause I thought it had minimal value. And listing it, packaging it, shipping it... Meh.

I know the gold tabs on the card edge connector can be recycled. Cut off then dissolved in chemicals, and gold precipitated out.
Not sure if the memory chips can be processed for anything.