The Chhattisgarh High Court ruled that Bharat Aluminium Company (BALCO) is not liable to pay royalty on vanadium sludge. The court stated that vanadium sludge is a by-product of the aluminium extraction process, not a mineral. The court found that the Korba Collector’s order, which imposed an Rs 8.63 crore royalty on BALCO, was unsustainable.