Complex sentence: In 1993, Barclays Bank Canada closed its Edmonton branch and the following year, it closed six additional branches in Vancouver, Calgary, Winnipeg, London, Montreal and Halifax, retaining only its head office.
Split into simpler sentences: In 1993, Barclays Bank Canada closed its Edmonton branch. In 1994, Barclays closed six branches (Vancouver, Calgary, Winnipeg, London, Montreal and Halifax), retaining only its head office.