China and South Korea have both banned imports of certain food and drinks from Taiwan, in a regional scare over contamination with a chemical usually used in plastics.
The Philippines and Hong Kong have also limited imports or sales of foodstuffs from Taiwan.
Taiwan began a nationwide inspection drive this week to ensure sports drinks, juices and other products were not tainted with DEHP or five other chemicals. It first raised the alarm on 24 May with a major recall.
The chemical DEHP can cause hormone malfunctions in children.
Authorities have arrested the owner of a company that used DEHP rather than more expensive palm oil in products supplied to dozens of local drink makers. He faces up to six months in jail.
The Taiwanese government has proposed dramatically tougher penalties for lacing food items with banned substances.
Beijing banned imports of Taiwan-made sports drinks, fruit juices and jams that Taipei said could contain excessive DEHP, and published a list of companies from the island whose imports were banned.
The Philippines Food and Drug Administration ordered a sweeping recall of about 300 different products.
It cautioned the public not to consume the products - which include sports drinks, fruit concentrate, sweets, syrup and yoghurt - and distributors were ordered not to sell or import them, the agency said in a notice.
South Korea's Food and Drug Administration also introduced a series of bans.
