b'STAATSOLIE MAATSCHAPPIJ SURINAME N.V.NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS FOR THE YEAR ENDED DECEMBER 31, 2018 (Continued)Depreciation of property, plant and equipment, and amortization of intangible assets(X US$ 1,000) 2018 2017Included in cost of salesDepreciationandamortizationupstream (37,754) (40,455)Depreciation downstream (52,066) (54,000)Sub total(89,820)(94,455)Included in Exploration expenses including dry holesDepreciationupstream-exploration (84)(17)Sub total(84)(17)Included in Selling and distribution expenses Depreciation downstream(21) (65)Sub total(21)(65)Included in General and administrative expenses Depreciationandamortizationcorporate (1,295) (1,535)Depreciation downstream(41) (38)Sub total(1,336)(1,573)Included in Other operating expenses Depreciation downstream (6) (6)Sub total(6)(6)Grand total(91,267)(96,116)Finance income (X US$ 1,000) 2018 2017Interest income on loans 764 960Other interest income13166Total finance income777 1,126 Finance costs (X US$ 1,000) 2018 2017Interest on borrowings (69,587) (62,908)Accretion expenses(7,586) (4,697)Otherfinancecharges (10,640) (280)Total finance costs(87,813)(67,885)65'