Earlier this month, as the seven time world champion remained in intensive care in the wake of his late December skiing fall, parent company Hassia Gruppe's chief Dirk Hinkel said he continued to back Schumacher.
"We remain committed to him and his family," he said, "and send him our best wishes."
Hinkel said at the same time that the more than eight year collaboration with Schumacher had led to "a much higher awareness" of the Rosbacher brand.
But the Swiss Sunday newspaper Sonntagsblick reports that Hinkel has apparently had a change of heart.
Just as it emerges that Schumacher has left intensive care in France and transferred to a Swiss rehabilitation hospital, the report claimed the great 45-year-old's Rosbacher contract will not be extended beyond 2014.
"After that," a spokeswoman confirmed, "our advertising will be with the product alone."