ACACIA:First Stoping Ore from Gokona Underground at North Mara

Acacia Mining plc

LSE:ACA

(“Acacia” or the “Company”)

First Stoping Ore from Gokona Underground at North Mara

Acacia is pleased to announce that it has commenced stoping operations ahead of schedule at the
Gokona Underground project at North Mara, with the first ore having been delivered to the process
plant. The first stope has to date demonstrated the expected geotechnical characteristics and
delivered both grade and ore tonnes in line with the mine plan.

We continue to expect a progressive increase in tonnes from the project as it ramps up through the
year and maintain our current expectations for production from the Gokona Underground for the
full year.

Further details can be obtained through the link below

http://dse.co.tz/sites/default/files/dsefiles/Fourth%20Quarter%202014%20Production%20Results%20Invite.pdf