b'STAATSOLIE MAATSCHAPPIJ SURINAME N.V.NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS FOR THE YEAR ENDED DECEMBER 31, 2021 (Continued)6.2 TRADE AND OTHER RECEIVABLES (X US$ 1,000) 2021 2020Tradereceivables 110,508 102,414Prepaymentsandothercurrentassets 14,037 13,069 124,545 115,483 Fortermsandconditionsrelatingtorelatedpartyreceivables,refertoSection7.Tradereceivablesarenon-interestbearingandaregenerallyontermsof3090daysnetofallowanceforexpectedcreditlosses.Movementsintheallowanceforexpectedcreditlossesoftradereceivables:(X US$ 1,000) 2021 2020As at January 1 7,184 7,936Adjustmentprioryearopeningbalance (45)- Addition 360 3,499Amounts written off (223) (3,951)Currencyadjustment (398) (282)Unusedamountsreversed-(18)As at December 316,878 7,184 Theageinganalysisofthetradereceivables(netofallowanceforexpectedcreditlosses)is,asfollows:Past due but not impairedNeither past due nor 30-6061-9091-120 (X US$ 1,000) Totalimpaired 30 days days days days 120 days2021 110,508 17,470 13,274 5,667 3,401 51,776 18,9202020 102,414 7,849 3,454 6,324 6,010 17,295 61,482ThetotaltradereceivablebalanceofUS$110,508 TheGroupdoesnottrackchangesincreditrisk,asofDecember31,2021(2020:US$102,414) butinsteadrecognizesalossallowancebasedonconsistsofabalanceofUS$24,399(2020:US$ lifetimeECLsateachreportingdate.TheGroup14,640)whichisrelatedtootherthird-partytrade hasestablishedaprovisionmatrixthatisbasedreceivables(refertosection7). onitshistoricalcreditlossexperience,adjustedforforward-lookingfactorsspecifictothedebtorsandIndeterminingtherecoverabilityofatradeorother theeconomicenvironment.receivable,theGroupperformsariskanalysisconsidering the type and age of the outstanding receivableandthecreditworthinessofthecounterparties. 174 STAATSOLIE 2021 ANNUAL REPORT'