Net Asset Value(s)

THE BIOTECH GROWTH TRUST PLC

NET ASSET VALUE

Undiluted

The estimated un-audited net asset value, calculated in accordance with the
guidelines of the Association of Investment Companies, for The Biotech Growth
Trust PLC at the close of business on 25 March 2014 was 512.64p (ex & cum
income).

Diluted

The estimated un-audited net asset value, assuming the re-issue of all of the
662,309 shares currently held in treasury, at the closing mid-market price on
25 March 2014, was 512.22p (ex & cum income).

For and on behalf of the Board

Frostrow Capital LLP

Secretary

26 March 2014