Act Governing the Choice of Law in Civil Matters Involving Foreign Elements Article 31
Where the parties with respect to an obligation which arises otherwise than from a juridical act agree to the application of the law of the Republic of China after a suit has been brought on the obligation in a court of the Republic of China, the law of the Republic of China is applied.
中文原文 涉外民事法律適用法第31條
非因法律行為而生之債，其當事人於中華民國法院起訴後合意適用中華民國法律者，適用中華民國法律。