Amirudin, 43, a field supervisor of the state tin mining company PT Timah, rests on a makeshift hammock, on a tin pontoon off the coast of Toboali, on the southern shores of the island of Bangka, Indonesia, May 1, 2021. Timah has been ramping up production from the sea. Company data shows its proven tin reserve on land was 16,399 tonnes last year, compared with 265,913 tonnes offshore. REUTERS/Willy Kurniawan