CtrctRegnStmtReq
                Mandatory
                GrpHdr
                Mandatory
                StmtReq
                Repetition (1..n)
                StmtReqId
                Mandatory
                RptgPrd
                Mandatory
                RptgPty
                Mandatory
                PtyId
                Mandatory
                LglOrg
                Optional
                Optional
                Nm
                Optional
                Establishment Date
EstblishmtDt
                Optional
                Definition: Date when the organisation was established.
Type: ISODate
Restrictions:
RegnDt
                Optional
                TaxPty
                Repetition (0..n)
                RegnAgt
                Mandatory
                RegdCtrctId
                Mandatory
                RtrCrit
                Optional
                SplmtryData
                Repetition (0..n)
                SplmtryData
                Repetition (0..n)