If a person entitled to a right of rescission has by his or her intentional act or negligence, materially damaged the subject matter of the contract, or has become unable to return it, or has caused it to be converted into a different kind of object by processing or altering it, the right of rescission shall be extinguished.
Civil Act — Article 553 (Extinction of right of rescission due to injury)
민법 제553조
For AI agents and developers — get this article as JSON, with the English and current Korean effective dates and an outdated-translation flag, from the korea-law API or as an MCP tool:
https://mcp.apify.com?tools=kr-data/korea-law