Promising reserves of rare earth elements have been found in the Singrauli coalfields of Madhya Pradesh, Parliament was informed on Monday.

Rare earth elements (REE) are a group of metallic elements like scandium and yttrium that are used in modern technologies such as clean energy, electronics, electric vehicles, and various other industrial applications. 

Replying to a question in the Rajya Sabha, Coal and Mines Minister G Kishan Reddy said that Coal India Ltdhas undertaken research and development projects related to REE found in coal mine waste. "Results from appraisal of Gondwana Sediments (coal, clay, shale, Sandstone) for Trace Elements & REE concentration in the Singrauli coalfield, indicate that REE are 'promising' in nature (with an enrichment of 250 ppm on a whole coal basis in coal samples and 400 ppm in non-coal samples)," the minister said.