Lefroy Exploration Limited announce that a specialized lake diamond drilling rig has commenced diamond drilling at the Zanex Prospect located approximately 50km to the south east of Kalgoorlie in the Eastern Goldfields Province of Western Australia. Diamond drilling has recently commenced with very good progress made on the first of a three hole diamond drill program. The Zanex Prospect is the most advanced of a number of gold prospects identified by aircore drilling during 2017 on Lake Lefroy. The prospects were initially identified by a geophysical based targeting exercise completed in December 2016. This also identified, and is reinforced by gravity data, a north westerly trending structure termed the Woolibar Fault. This fault is to the east of and parallel to the Boulder Lefroy and Speedway Faults which have a primary influence on gold deposits at the St Ives gold camp. The Woolibar Fault extends for approximately 15km within Lake Lefroy. Wide spaced air core drilling by the Company along the Woolibar Fault on Lake Lefroy intersected anomalous gold mineralization that supports the Company's view that the Woolibar Fault may be of similar stature and prospectivity to the nearby Boulder Lefroy and Speedway Faults. The Zanex gold anomaly, defined by air core drilling during 2017, has established a north westerly trending sequence of strongly altered and deformed, high Mg basalt, that is intruded by porphyry and is open along strike. This drilling which was on a nominal 160m line and 80m hole centre spacing, has defined a gold mineralized trend over a 1,000m strike length coincident with the altered basalt host rocks.