WHITE PLAINS, N.Y. — The board of directors of Bunge Ltd. has approved an 8.7% increase in the company’s regular quarterly cash dividend, to 25c per share from 23c. The new dividend is payable on Sept. 2 to shareholders of record as of Aug. 16. The company also declared a quarterly cash dividend of $1.21875 per share on its 4.875% cumulative convertible perpetual preference shares, payable on Sept. 1 to shareholders of record as of Aug. 15.