Should make this mandatory for the whole food services industry, using a carrot and prod rod approach.
Dateline 2019-11-12, Yahoo Finance:
Sunway Hotels & Resorts, the hospitality division of Malaysian conglomerate Sunway Group, partners with FatHopes Energy for the recycling of its used cooking oil into biodiesel, taking another significant step on its commitment towards a sustainable environment. Through this sustainability initiative, more than fifty percent (50%) of the participating Sunway Hotels’ used cooking oil is expected to be recycled and collected by FatHopes Energy on a weekly basis at the hotels’ respective collection centres to be converted into biodiesel.
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Wata - Malaysian Oil and Gas Engineer 