German chemical giant BASF has warned customers to expect delays after a fire at its site in the western city of Ludwigshafen. The business said deliveries of selected vitamin A, vitamin E and carotenoid products as well as certain flavourings would be affected. The plant in Ludwigshafen, which manufactures flavourings and precursors for production, shut down after the incident last Monday. A fire broke out at the plant after an organic solvent escaped in the southern section of the site. Some 18 people, including seven firefighters, suffered light injuries, but BASF said there was no risk to …