While it is unconnected, the EC decision comes against the backdrop of threats to remove both Southeast Asian countries from its Everything But Arms (EBA) scheme because of human rights abuses. The EBA deal allows developing countries access to export a broad array of goods - including rice - to European markets without shouldering tariffs.
The EC found that Indica rice imports from Cambodia and Myanmar had increased by 89 percent in the last five seasons. But Cambodia's ministry of commerce said the complaint was based on inaccurate information and would hurt farmers in one of Southeast Asia's poorest countries.
It is a "weapon to kill them and their families who are in debt", it said late Thursday. Nearly half of Cambodia's 625,000 tonnes of exported rice went to EU markets last year, according to government data.