The court halted mining of the ore in the mineral-rich state in 2011 after social activist group Samaj Parivartan Samuday alleged that rampant illegal mining had damaged the environment.
In the southern state of Tamil Nadu, piles of bricks and mounds of weed-ridden soil at a halted project attest to Wal-Mart's hurdles and frustrated plans.
French President Francois Hollande has argued that Mali could become a "terrorist state" that could threaten the rest of Africa and Europe if the rebel advance is not halted.