Indonesia says it has no plans to tax thermal coal exports after hinting at the move earlier this year.
Reuters reports mining companies are becoming increasingly frustrated by Indonesia's mining policy, with Government officials sending mixed messages to the industry.
According to Reuters while energy and minerals Minister Jero Wacik said the Government had "never discussed" taxing coal exports, officials from the same Government last week said they were considering implementing the tax to safeguard domestic supplies.
Earlier this year the Indonesian Government introduced harsh new foreign ownership rules for the country's mining developments.
It also proposed a ban on the export of some unprocessed minerals.
The Government said the changes were put in place to help protect the country's resources and ensure local businesses profited from the industry.