Review and approve financial matters related to contractors (statements, letters, guarantees, insurance clearance, deposits).Control and approve payments (advance payments, interim payments, administrative and mission expenses).Review purchase and service invoices and contracts in accordance with transaction regulations.Participate in transaction commission meetings and approval of decisions.Review and approve financial reconciliations (with internal and external companies, intergroup accounts).Prepare financial reports (contractor debts, insurance, tax, VAT, year-end financials).Review and approval of general accounting documents and closing of annual accounts.