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SECRETARY FOR HEALTH AND WELFARE: Sir, I am advised that
the materials used for manufacturing these food containers
are generally found to be polystyrene, plasticised
polyvinyl chloride, polyethylene and polypropylene, which
are not mutations nor carcinogens and they are therefore
suitable for holding food. I do not have that particular
chemical mentioned by Dr. IP. I will certainly ask the
relevant authority to check and will reply in writing.
(See Annex IV)