Oman Antimony Roaster Update

19 December 2016

Tri-Star Resources plc

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

Oman Antimony Roaster Update

Tri-Star Resources plc (AIM: TSTR), is pleased to provide the following update with regard to the Oman Antimony Roaster ("OAR"). The OAR is being constructed by the Company's Omani joint venture company, Strategic & Precious Metals Processing LLC ("SPMP"). Tri-Star has a 40% equity interest in SPMP.

As noted in the Company's most recent update of 4 November 2016, engineering design, procurement of long lead time items and plant layout continues to advance.

SPMP has been pleased with responses from potential suppliers of feedstock and has been conducting bulk commercial trials with concentrates containing both antimony and gold. Further trials and test-work are ongoing.

Additional resources have been added by SPMP to the project team and Tri-Star is confident that the OAR remains on course for commissioning by the end of 2017, as previously advised.

The Company is also pleased to report that over half of the capital outlay has been bid committed or incurred by SPMP. Site construction activity in Sohar has now commenced and major capital items are scheduled to arrive on site during the first half of 2017.