Even if this was corporatism (which it might be, but corporatism is more complex than that), not all corporatism is fascism -- Mussolini has a quote equating them, but that was trying to piggy-back fascism on corporatism, which had been supported in many non-fascist forms by many institutions (notably, the Catholic Church) long before fascism exist.

Fascism combines corporatism with militaristic nationalism and other features.

Mere business-government entanglement, even when it becomes corporatism, is not sufficient for fascism.