Home Business Adani Enterprises could wait up to two years for Carmichael mine approval Business Adani Enterprises could wait up to two years for Carmichael mine approval By Genpie - February 21, 2019 166 0 Facebook Twitter Google+ Pinterest WhatsApp India’s Adani Enterprises might have to wait up to two years to get two environmental approvals to start construction at its controversial Carmichael coal mine in Australia, a Queensland government official told Reuters.