June 19 (Bloomberg) - Baotou Steel Rare-Earth Hi-Tech Co. joined other producers in cutting output of rare earth last month to halt a price decline, South China Morning Post reported, citing an official from Baotou Steel.

Inner Mongolia-based Baotou Steel, among China's top-five rare earth producers, and competitors in Jiangxi province stopped supply to some companies for one month, the English- language paper cited company secretary Zhang Rihui as saying.

Baotou hasn't decided whether to extend the suspension, Zhang said, according to the paper.

The price of praseodymium oxide, which is used to color glass and enamel, has fallen as much as 39 percent to about 135,000 yuan ($19,618) a metric ton this year, the Post said, citing the official Xinhua News Agency.