First Stoping Ore from Gokona Underground at North Mara

ACACIA MINING PLC - First Stoping Ore from Gokona Underground at North Mara

PR Newswire

London, June 1

2 June 2015

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.

ENQUIRIES

For further information, please visit our website: http://www.acaciamining.com/ or contact:

Acacia Mining plc +44 (0) 20 7129 7150Giles Blackham, Investor Relations ManagerBell Pottinger +44 (0) 20 3772 2500Daniel Thöle

About Acacia Mining plc

Acacia Mining plc (LSE:ACA), formerly African Barrick Gold, is Tanzania’s largest gold miner and one of the largest producers of gold in Africa. We have three producing mines, all located in north-west Tanzania: Bulyanhulu, Buzwagi, and North Mara and a portfolio of exploration projects in Tanzania, Kenya and Burkina Faso.

Our approach is focused on strengthening our three core pillars; our business, our people and our relationships. Our name change from African Barrick Gold to Acacia reflects a new approach to mining, and an ambition to create a leading African Company.

Acacia is a UK public company headquartered in London. We are listed on the Main Market of the London Stock Exchange with a secondary listing on the Dar es Salaam Stock Exchange. Barrick Gold Corporation remains our majority shareholder. Acacia reports in US dollars and in accordance with IFRS as adopted by the European Union, unless otherwise stated in this announcement.

Disclaimer and forward-looking statements

This announcement includes “forward-looking statements” that express or imply expectations of future events or results as opposed to historical facts. These statements include, financial projections and estimates and their underlying assumptions, statements regarding plans, objectives and expectations with respect to future production, operations, costs, projects, and statements regarding future performance. Forward-looking statements are generally identified by the words “plans,” “expects,” “anticipates,” “believes,” “intends,” “estimates” and other similar expressions.

All forward-looking statements involve a number of risks, uncertainties and other factors, many of which are beyond the control of Acacia, which could cause actual results and developments to differ materially from those expressed in, or implied by, the forward-looking statements contained herein. Factors that could cause or contribute to differences between the actual results, performance and achievements of Acacia include, but are not limited to, changes or developments in political, economic or business conditions or national or local legislation or regulation in countries in which Acacia conducts - or may in the future conduct - business, industry trends, competition, fluctuations in the spot and forward price of gold or certain other commodity prices (such as copper and diesel), currency fluctuations (including the US dollar, South African rand, Kenyan shilling and Tanzanian shilling exchange rates), Acacia’s ability to successfully integrate acquisitions, Acacia’s ability to recover its reserves or develop new reserves, including its ability to convert its resources into reserves and its mineral potential into resources or reserves, and to process its mineral reserves successfully and in a timely manner, Acacia’s ability to complete land acquisitions required to support its mining activities, operational or technical difficulties which may occur in the context of mining activities, delays and technical challenges associated with the completion of projects, risk of trespass, theft and vandalism, changes in Acacia’s business strategy and ongoing implementation of operational reviews, as well as risks and hazards associated with the business of mineral exploration, development, mining and production and risks and factors affecting the gold mining industry in general. Although Acacia’s management believes that the expectations reflected in such forward-looking statements are reasonable, Acacia cannot give assurances that such statements will prove to be correct. Accordingly, investors should not place reliance on forward-looking statements contained in this announcement.

Any forward-looking statements in this announcement only reflect information available at the time of preparation. Subject to the requirements of the Disclosure and Transparency Rules and the Listing Rules or applicable law, Acacia explicitly disclaims any obligation or undertaking publicly to update or revise any forward-looking statements in this announcement, whether as a result of new information, future events or otherwise. Nothing in this announcement should be construed as a profit forecast or estimate.