b'STAATSOLIE MAATSCHAPPIJ SURINAME N.V.NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS FOR THE YEAR ENDED DECEMBER 31, 2021 (Continued)Retiree medical plan Staatsolie2021changesinthedefinedbenefitobligationandfairvalueoftheplanassets.Pension cost charged to profit or loss Remeasurement gains/(losses) in other comprehensive income(X US$ 1,000) Return on Actuarial plan assets changes Net InterestSub-totalBenefits(excludingarising fromExperienceChange in Sub total Contribution 1.1.2021 Service cost expense included inpaid amountschanges inadjustments exchange rate included inby employer 31.12.2021profit or loss included infinancial OCInet interestassumptionsexpense)Definedbenefitobligation(19,342) (639) (967)(1,606) (153)-(21,083) (20) 6,670(14,433)- (35,534)Fairvalueofplanassets8,066 -407407(240) (180)- -508328 151 8,712 Benefit liability(11,276)(639)(560)(1,199)(393)(180)(21,083)(20)7,178 (14,105)151 (26,822)2020changesinthedefinedbenefitobligationandfairvalueoftheplanassets.Pension cost charged to profit or loss Remeasurement gains/(losses) in other comprehensive income(X US$ 1,000) Return on Actuarial plan assets changes Net InterestSub-totalBenefits(excludingarising fromExperienceChange in Sub total Contribution 1.1.2020 Service cost expense included inpaid amountschanges inadjustments exchange rate included inby employer 31.12.2020profit or loss included infinancial OCInet interestassumptionsexpense)Definedbenefitobligation(24,597) (953) (840)(1,793) 193-(4,839) (149) 11,8436,855 - (19,342)Fairvalueofplanassets7,420 -256256(193) 118- -340458 125 8,066 Benefit liability(17,177)(953)(584)(1,537)- 118 (4,839)(149)12,183 7,313 125 (11,276)TheplanassetvalueoftheStaatsolieretireemedicalplanisprovidedbytheinsurancecompanywheretheplanassetsareincorporatedinanannuityinsurancepolicy.Thefairvalueofplanassetsisthesumofthesurrendervalueandtheestimatedexcessinterest,asshownbelow:(X US$ 1,000) 2021 2020Surrendervalue 8,363 7,905Excess interest 126 161Fairvalueofassets8,489 8,066 144 STAATSOLIE 2021 ANNUAL REPORT'