Če se pogodbenik ukvarja z rudarstvom, prevozom polimetalnih gomoljev in proizvodnjo predelanih in polpredelanih kovin, pomenijo razvojni stroški v rudarskem sektorju del pogodbenikovih razvojnih stroškov, ki so neposredno povezani z rudarskim izkoriščanjem bogastev pogodbenega sektorja v skladu s splošno priznanimi obračunskimi načeli in s finančnimi pravili, predpisi in postopki Oblasti, vštevši med drugim pristojbino za vlogo, letno fiksno pristojbino in, glede na razmere, stroške za iskanje in raziskovanje v pogodbenem sektorju ter del stroškov za znanstveno raziskovanje in razvoj.
If the contractor engages in mining, transporting of polymetallic nodules, and production of processed and semi-processed metals, 'development costs of the mining sector` means the portion of the contractor's development costs which is directly related to the mining of the resources of the area covered by the contract, in conformity with generally recognised accounting principles, and the financial rules, regulations and procedures of the Authority, including, inter alia, application fee, annual fixed fee and, where applicable, costs of prospecting and exploration of the area covered by the contract, and a portion of research and development costs.