MAJOR LITHIUM‐TANTALUM DISCOVERY AT GASCOYNE PROJECT Segue...

MAJOR LITHIUM‐TANTALUM DISCOVERY AT GASCOYNE PROJECT Segue Resources Limited (Segue or the Company) is pleased to announce the discovery of significant lithium‐caesium‐tantalum (LCT) mineralisation at the Reid Well Prospect at the Gascoyne Lithium Project in Western Australia (Figure 2). Assays from the first batch of rock chips from Reid Well have confirmed the existence of a complex zoned pegmatite with assays up to 1.02% Li2O and 530ppm Ta2O5. The 65 rock chips were collected from the outcropping outer margin of a pegmatite covering 1km x 250m within Segue’s 100% owned tenement application E09/2169. A total of 12 samples returned lithium results above 0.3% Li2O with associated elevated caesium and rubidium (Figure 3). In addition, two‐thirds of the samples contained tantalum grades over 100ppm Ta2O5 with a maximum of 530ppm Ta2O5. Figure 1: Project location map Figure 2: Gascoyne Lithium Project tenement map The rock chips were collected as part of a detailed soil sampling programme which was designed to follow up on the high priority Reid Well stream sediment anomaly (see announcement on 2 March 2017). The Reid Well area consists of the eastern margin of the Thirty Three Supersuite which has intruded into Proterozoic metasediments. Previous exploration work by Segue identified the Thirty Three Supersuite as being highly fractionated and fertile for LCT pegmatites. ASX Code: SEG Page 2 Figure 3: Aerial image showing significant rock chip samples at Reid Well Prospect Within the metasediments, a number of small pegmatite dykes occur within schists and an extensive pegmatite body was identified in topographic lows. The pegmatite contained numerous small outcrops of fine grained (aplitic) and medium to coarse grained pegmatite. Rock chips were collected from outcrops and sub‐crops extending over an area of over 1km x 250m. The 10 highest grade lithium and tantalum results are listed in Tables 1 and 2 with a full list of assay results in Appendix A. Table 1: High grade lithium assays Table 2: High grade tantalum assays Sample ID Lithium (% Li2O) Sample ID Tantalum (ppm Ta2O5) GAS00531 0.69 GAS00523 454 GAS00535 1.03 GAS00528 412 GAS00536 0.56 GAS00532 386 GAS00537 0.77 GAS00543 377 GAS00539 0.75 GAS00554 530 GAS00540 0.67 GAS00560 354 GAS00541 0.90 GAS00562 503 GAS00550 0.42 GAS00563 346 GAS00552 0.52 GAS00565 430 GAS00559 0.84 GAS00566 403