For least seven key rare earths - including praseodymium, used in magnets, and yttrium, used in ceramics - China was a net importer in 2018 for the first time in more than 30 years.
The asset's reserves as at December 31, 2018 increased 4% to 1.9 million tonnes grading 11 grams per tonne of gold for 688,000 ounces, while measured and indicated resources increased 7% to 3.5Mt from a year earlier.
Scientists took what they call a "first step" toward creating ultrasensitive biosensors to detect the disorders that cause affections such as Alzheimer's disease.
