TWO pontoons sailed into the middle of the sea off the coast of Rambak Beach, Sungailiat subdistrict, Bangka Regency, Bangka Belitung Islands. On Thursday morning, April 18, eight suction ships were already lined up on the horizon. Like on previous days, they were operating to suck tin materials from the sea, which for over a decade has become the production operation mining business permit (IUP-OP) area of Timah covering 9,919 hectares