There is also an exploration unit engaged in tie-ups with other mining companies to prospect for gold, diamond and coal (its main tin reserves at Bangka are expected to last only another decade).
After leading an investigation into tin mining in Bangka earlier this year, Friends of the Earth is now pushing the biggest smartphone companies, Samsung and Apple, to agree and implement a plan that will put an end to the human and environmental problems it causes.
Another plus: Kuntoro's decision to shift its headquarters out of Jakarta to Bangka, an island of 500, 000 residents off southern Sumatra where tin has been mined since the 18th century.