China Southern Airlines plans to boost the registered capital of Xiamen Airlines to three billion yuan from 1.2 billion yuan jointly with Xiamen C and D Corporation and Hebei Aviation Investment Group according to market filings by the airline. After the injection of capital, Southern Airlines’ holdings in Xiamen Airlines will be diluted to 51%. It will remain as the parent company of the latter. Xiamen Airlines recorded a profit of 391 million yuan in the first half of 2010.