Great. We've talked about the various raw materials that need to...

Great. We've talked about the various raw materials that need to go in. Someone's asking about cobalt, which is a very complicated one because, particularly social and by environmental issues in Africa. Do you have any concerns about procuring cobalt? Do you need it?

Dr. Qichao Hu (47:28):

Yeah. Yes. In all the high nickel cathodes, there is a little bit of cobalt. It's typically 90% plus nickel, and then around 3% or 4% cobalt, and then another 4% manganese. So cobalt, for example, in your phone, that's almost all cobalt. And tin the automotive application, that has come down from 100% cobalt to 30% cobalt, 20%, 10%. Now, we're down to about 3% or 4%, so cobalt is needed for the high nickel premium vehicles, but then, the amount has come down. And then, we are working with the suppliers for cobalt, but also a few other materials to really trace the entire value chain going all the way to the mine to make sure that the source is sustainable to the local ecology as well as the local community. There are organizations that you can actually work with to ensure that all the materials that you get are sustainably and responsibly sourced, and it is becoming a very important thing for us as well as the OEMs