Maritime Act Article 66

Where after the commencement of the voyage, the ship is unable to reach the port of destination due to force majeure and the cargo are then brought back to the loading port, the shipper shall be only liable for the freight of the outward voyage even though the ship is contracted to make an outward and homeward voyage.
中文原文 海商法第66條
船舶發航後,因不可抗力不能到達目的港而將原裝貨物運回時,縱其船舶約定為去航及歸航之運送,託運人僅負擔去航運費。

English translation for reference only; the Chinese text prevails. Not legal advice.