...Support Drives Ratings: SociTtT GTnTrale Marocaine de Banques' (SGMB) ratings are based on a high probability of support from its majority shareholder SociTtT GTnTrale S.A. (SG: A/Stable), in case of need. This reflects SG's strong ability and willingness to provide support to SGMB. The Support Rating of SGMB is constrained by Morocco's Country Ceiling. Strong Ability to Support: SG is a very solid financial institution as indicated by its Long-term Issuer Default Rating (IDR). Fitch Ratings considers that SG has ample resources to support SGMB, whose liabilities accounted for a very limited 0.6% of SG's at end-2017. Strategically Important Subsidiary: International retail banking and financial services is one of SG's three strategic business lines. SGMB is SG's largest subsidiary in Africa and SG views SGMB as its entry point to the continent. SGMB has a reasonable franchise in Morocco as the third-largest bank and largest foreign-owned bank with a deposit market share of 7%. Strong Integration...