Directorate Changes

Certain information contained in this announcement would have been deemed inside information for the purposes of Article 7 of Regulation (EU) No. 596/2014 until the release of this announcement

17 July 2017

Tri-Star Resources plc

("Tri-Star" or the "Company")

Directorate Changes

Tri-Star announces that, with immediate effect, Jonathan Quirk, Non-executive Director, has resigned from the Tri-Star Board and Dr Scott Morrison has been appointed as a Non-executive Director of the Company.

Dr Scott Morrison has a BSc (Geology) and a PhD (Metallurgical Engineering) and over 35 years' experience in the mining, extractive metallurgy, and manufacturing sectors. Scott served as the CEO of Metalor Technologies International SA, a world leader in the refining of precious metals and the manufacture of a variety of value-added products, from 2004-2013, Chairman from 2013-2015 and a retained advisor until 2016. He spent 20 years with SGS SA, the world leader in inspection testing and verification, and has had country and mineral/metals sectoral leadership assignments in the USA, Canada, Peru, Bolivia and Ghana. He has in-depth experience in leading multi-cultural international organisations. Scott also acts as senior independent director for AIM quoted Asa Resource Group plc and non-executive director for DuSolo Fertilizers Inc. listed on the TSX Venture exchange.

Mark Wellesley-Wood, Chairman of Tri-Star, said: "I am delighted to welcome Scott to the Board of Tri-Star. His knowledge and experience particularly in metallurgy and mineral processing will be of great value to us as we continue to support our joint venture company, Strategic & Precious Metals Processing LLC, which is constructing the antimony and gold roasting facility in Oman.

"I would also like to thank Jonathan Quirk who has given the Company sterling service for seven years and has been a pleasure to work with. Since joining the Board in August 2010, he has worked diligently to help the Company move forward to achieve its goals. I wish him well for the future."

Director Declaration:

Dr Scott Douglas Morrison, aged 60, currently holds and has held the following directorships within the five years prior to the date of this announcement:

Enquiries:

Tri-Star Resources plc Tel: +44 (0) 20 3470 0470

Guy Eastaugh, Chief Executive Officer

SP Angel Corporate Finance (Nomad and Broker) Tel: +44 (0) 20 3470 0470

Robert Wooldridge / Jeff Keating

Yellow Jersey PR Limited (Media Relations) Tel: +44 (0) 776 932 5254

Felicity Winkles / Joe Burges