The Montreal International Jazz Festival is losing its main corporate sponsor, with General Motors of Canada calling it quits after the 30th edition of the festival next July.

GM is in the midst of a five-year agreement with the festival that saw it contribute an estimated $2.5 million annually towards the event’s $25-million budget. The agreement expires next summer. The automaker has sponsored the event for 10 years in total, and has been associated with several important elements of the festival, including the main outdoor stage and the General Motors Grand Jazz Award given to the best Canadian jazz band.

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