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Worldwide consumer electronics supplies around the world could be under threat because of a trade row between Japan and South Korea.
The dispute stems from export restrictions Tokyo imposed on certain industrial materials that Seoul needs to make semiconductors and display screens.
Japan has also warned tougher trade curbs could be on the way.
The moves have drawn anger from South Korea, and earlier this month President Moon Jae-in described the situation as an "unprecedented emergency" for his country's economy.
On Tuesday, officials from Seoul will bring the dispute to a meeting of the World Trade Organisation (WTO) General Council.