And they can (apparently, I'm not an expert) be reclaimed. It's very technically challenging and expensive but they are still in all these old devices in Chines

And they can (apparently, I'm not an expert) be reclaimed. It's very technically challenging and expensive but they are still in all these old devices in Chinese landfills. They are not used up, I'd call them 'raw materials' not 'raw resources'. Oil and coal are 'raw resources' that you can't get back after they are used up. One could even make an argument that time and money could be better spent researching a better recycling process for e-trash than trying to mine the ocean floor.