SMM, Dec. 11: northern rare Earth Group announced December listing price of light rare earths, all the same compared with the previous month. In the early stage of the market, it is generally waiting for the listed price of the Northern rare Earth Group to guide the price of praseodymium and neodymium oxide. SMM expects subsequent short-term praseodymium and neodymium oxide prices to remain stable or to rise slightly as a result of a pick-up in stock demand a year ago.