India is working to obtain rare-earth samples from Myanmar with the assistance of a powerful rebel group, according to four people familiar with the matter, as it seeks alternative supplies of a strategic resource tightly controlled by China. India's Ministry of Mines asked state-owned and private firms to explore collecting and transporting samples from mines in northeastern Myanmar that are under the control of the Kachin Independence Army, three of the people said. State-owned miner IREL and private firm Midwest Advanced Materials - which received government funding last year for the commercial manufacturing of rare-earth magnets - were among those involved in the discussions, the sources said. New Delhi hopes to test the samples in domestic labs to ensure they...