It's been labelled as a race for riches, searching for minerals like cobalt, zinc and gold. Leading the race with his state-of-the-art technology is China's most experienced submariner, Fuen Tao and his crew of deep-sea explorers. They believe that the ocean floor could contain untold mineral riches, but it is also incredibly dangerous. This story originally aired 9 April 2017. *Connect with 7NEWS Spotlight online* Visit 🔗https://7news.com.au/spotlight 7NEWS Spotlight Podcast 🎧 http://smarturl.it/7NewsSpotlight Facebook https://www.facebook.com/7newsSpotlight/ Instagram https://instagram.com/7newsSpotlight/ TikTok https://www.tiktok.com/@7news.spotlight 7NEWS combines the trusted and powerful news brands, including Sunrise, The Morning Show and 7NEWS.com.au, delivering unique, engaging and continuous coverage on the issues that matter most to Australians. Watch 7NEWS nightly at 6pm and weekdays at 12pm and 4pm on Channel 7 and 7plus.