South Korean Conglomerate Hanwha subsidiary Hanwha Chemicals has taken a controlling 49.99% stake buying 36 million shares fro m Solarfun at $10.72 (4.6% premium) and the complete shareholding of promoters Good Energies (controls German Q-Cells as well ) and Chairman Mr. Yonghua Lu .Solarfun is the 4th largest Chinese company which has been executing well on a vertical integration strategy.