Thomson Resources announced that additional diamond drilling assay results with outstanding tin mineralisation have been received from Thomson's 100% owned Bygoo Tin Project, located in the Lachlan Fold Belt in New South Wales. The Company completed two diamond holes at Bygoo North, which returned solid rock core samples in 2022 and have been the subject of interpretation and analysis. Previous results for this drilling campaign were released in July 2022.

These new high-grade tin results exceed expectations that originally occurred from preliminary analysis through core logging and testing with a portable XRF analyser. As a result, additional core samples were selected from these holes and two older diamond core holes drilled in previous years, the results of which are presented in this Release. BNRC016D was drilled from north to south, following up a major intersection in BNRC013.2 At the time the division of this intercept into three named separate zones had not been developed.

The cassiterite mineralisation at 82m depth was noted but was considered an outlier as it was much too shallow to be associated with that found in BNRC013. The discovery of the P380 Zone with BNRC073 (23m at 1.4% Sn)3 occurred much later and it is only now that this intercept of 2.2m at 4.0% Sn in BNRC016D can be shown to fit into that modelled zone. Further down BNRC016D there are several more significant intercepts.

When combined they aggregate to 36.7m at 0.4% Sn from 92.4m, which includes some higher-grade hits - 1.2m at 2.3% Sn from 125.3m and 1.4m at 2.2% Sn from 127.7m. The higher grade is close to an intersection from BNRC013 ­ 23m at 1.0% Sn: that intersection also did not fit with the Main Zone model at the time and is now interpreted to be from a "Link" zone between the Main and P380 zones. It is clear from the current interpretation that BNRC016D did not reach the Main Zone target.

Diamond core hole BNRC065D was another attempt to drill the Main Zone from the north and this was situated 20m to the west of BNRC016D. Logging of core noted several small indications of cassiterite but low results from the XRF analyser meant that, like BNRC016D, the core was not cut for assay at that time. Again, like BNRC016D, the hole failed to reach the targeted Main Zone.

With the new core assay results from later diamond drilling, the hole was reevaluated, and several sections were cut and assayed with good results ­ in particular 13.6m at 0.6% Sn from 103.42m depth which included a higher-grade portion of 3.0m at 2.3% Sn from 113.4m. This intercept now makes sense because it aligns exactly with the interpreted position of the P380 tin greisen, discovered a few weeks later with BNRC073 - (23m at 1.4% Sn). BNRC080D and BNRC084D had some small extra intervals assayed which resulted in small additions to the intercept widths.

The P380 Mineralised Zone ­ chronology of discovery: The new results from core assays provide two new intercepts from the "P380" Zone. The zone is named after an old hole, P380, dating from 1975 drilling by Cominco, which had a deep intersection 200m east of the shallow Dumbrells pit - 18m at 0.5% Sn from 153m depth4. The collar location could not be verified, and it was suspected that perhaps the hole had been mislocated 50m to the north and was in fact an intercept into the Main Zone.

BNRC065D was drilled by Thomson in 2021 and showed a weak intercept of 2.4m at 0.6% Sn from 113.4m depth. As observed above, this was too far north to be assigned to Main Zone and thoughts returned to the P380 intercept. BNRC073 was drilled in the same program, collared halfway between BNRC065D and P380, to test for any continuity.

This hole delivered the "discovery" intercept of 23m at 1.4% Sn from 143m depth. Last year, BNRC085 was drilled at the western end of the east-west modelled zone and delivered 26m at 2.1% Sn from 94m depth. Now the new core assays have delivered an updated 13.6m at 0.6% Sn from 103.42m depth including 3.0m at 2.3% Sn from 113.4m for BNRC065D, as well as BNRC016D's new 2.2m at 4.0% Sn (included in a wider intercept of 9.1m at 1.1% Sn from 74.7m depth).

Below is a table of all intercepts in holes that cut through the modelled P380 zone from west to east. The MGA co-ordinates given are the mid-point of the intercepts and the depth shown is depth below surface. True width is calculated from an interpretation on cross section.

The modelled zone is almost vertical with a steep dip north. It has a strike of about 083 degrees (east-west). All holes that cut through the modelled trace have significant intercepts.

Drill hole BNRC013 may have stopped just short, and the weak intercept may represent a weak halo zone. P380 is open along strike and at depth and will be followed up by further drilling.