Six West Papuan villages along the Fly River boarder area are seeking damages for environmental pollution since operations at the Ok Tedi mine in Papua New Guinea started in 1984.
The Post Courier newspaper says the villagers have written to the Office of the Solicitor General informing it of their intention to take the matter to the National Court.
The letter has advised that there was a serious breach of international laws by PNG and OTML as these West Papuan villages were protected under the Mining Ok Tedi Agreement Act 1976.
The letter claims that their case is based on international law on human rights.
The letter says the claimants will only accept payment offers for damages done since 1984 and nothing less.
The villages are along the stretch of the Fly River which forms the border between PNG and Indonesia's Papua province.