BlackRock Municipal 2020 Term Trust declared monthly distributions for February, March and April 2013 of $0.062250 per share payable on March 1, 2013, April 1, 2013 and April 30, 2013 to the shareholders of record as of February 15, 2013, March 15, 2013 and April 15, 2013 respectively. The ex-dividend dates are February 13, 2013, March 13, 2013 and April 11, 2013 respectively.

The company also declares special distribution of $0.165000 per share tax-exempt income payable on April 30, 2013 to the shareholders of record as on April 15, 2013. The ex-dividend date is April 11, 2013.