EXECUTION VERSION CBQ FINANCE LIMITED ANDTHE COMMERCIAL BANK (P.S.Q.C.) AS ISSUERSAND THE COMMERCIAL BANK (P.S.Q.C.) AS GUARANTOR (IN THE CASE OF NOTES ISSUED BY CBQ FINANCE LIMITED) U.S.$5,000,000,000EURO MEDIUM TERM NOTE PROGRAMME DEED OF COVENANTJuly 13th, 2020FiledJuly 13th, 2020