The biodiesel was meant to be equivalent to regular diesel, so it could be sold at the same price, but more expensive to produce. So a "previously non existent

The biodiesel was meant to be equivalent to regular diesel, so it could be sold at the same price, but more expensive to produce. So a "previously non existent or previously carbon neutral industry" wouldn't have any reason to switch to biodiesel, unless it was already good for them to switch to regular diesel.