The West Coast is about to lose Solid Energy's sponsorship, which has brought almost $10 million into the region over the past 11 years.
Solid Energy stakeholder engagement manager Kath Low said that between 2001 and the end of June 2012, Solid Energy spent $15.3m on sponsorship nationally, including about $9.94m on the West Coast.
The national sponsorship included $9.62m in grants of $100,000 and over, of which $6.52m had been spent on the Coast.
The Coast sponsorship equates to around 65 per cent of the national total.
Ms Low said it was unlikely Solid Energy would be able to provide funding during the 2013/2014 financial year.