"Jeffrika Heavy Industries and Mining Concern, LLC" isn't really concerned with mining. Frankly, it doesn't even exist. This site is a personal home page done in a style that parodies heavy industry company web pages.
Jeffrika Heavy Industries is a work of fiction.
We offer no services, we have no job openings, we don't have any certifications. We don't speak Chinese. We have no offices either at home or abroad, and we certainly don't want any of your core samples.
If you are actually searching for the kind of services listed on this site, we're sorry to have wasted your time. Please look elsewhere, or not at all. Remember, undersea uranium mining can not be particularly good for the environment no matter what else you might have read about it on the Internet.