July 20 (Reuters) - Caledonia Mining Corporation Plc CAL.TO
* Caledonia mining corporation plc: q2 2017 production update
* Approximately 12,522 ounces of gold were produced during quarter
* Caledonia mining - gold produced for first half of 2017 was 25,316 ounces, an 8.5 per cent increase on 23,322 ounces produced in first half of 2016
* Maintains its' 2017 full year production guidance of between 52,000 ounces and 57,000 ounces
* Remains on track with progress towards its long-term target of 80,000 ounces by 2021
* Confident that will achieve revised production guidance for 2017 of between 52,000 and 57,000 ounces of gold
* Work on central shaft remains on track