THE deafening sounds of the Donveng water pumps broke the silence of the forests near Desa Penyamun, Kecamatan Pemali, in Bangka, where PT Bangka Belitung Timah Sejahtera, a tin-smelting company, operates a mining concession. That Wednesday a fortnight ago it was raining as 12 miners were digging for tin. One miner named Tebi, descended into a pit 5 meters deep. The 19-year-old worked on mounds of earth as fellow miners kept mud-sucking pumps fir