Highlights
• 65.0 million tonnes (Mt) at an average grade of 1.00 g/t Au for a total of 2.1 million ounces (Moz) of
gold in the Indicated mineral resource category.
• 20.7 Mt at an average grade of 0.93 g/t Au for a total of 0.62 Moz of gold in the Inferred mineral
resource category.
• The mineral resource isreported within a conceptual pitshell using a gold price of US$1,700 per troy
ounce and a cut-off grade of 0.5 g/t Au.
• The mineral resource includes a higher-grade portion above 0.9 g/t Au of:
o 32.9 Mt at 1.27 g/t Au for 1.35 Moz in Indicated
o 8.4 Mt at 1.25 g/t Au for 0.34 Moz in Inferred
• The mineral resource has been estimated from approximately 167,600m of diamond and reverse
circulation drilling,since the grassroots Twin Hills gold discovery announced in August 2019.
• Most of the mineral resources previously classified as Inferred, have been upgraded to Indicated
resources through infill drilling.
• This resource compares to resources previously reported on July 14
th
, 2021, of 0.44 Moz at 0.98 g/t in
the Indicated category and 1.52 Moz at 1.02 g/t in the Inferred category (at 0.3 g/t cut-off grade).
• Osino will host a webinar to discuss the updated mineral resources at 11am ET (8am PT) on April 20,
2022. Details are provided in this press release.
Vancouver, British Columbia, April 13, 2022 – Osino Resources Corp. (TSXV:OSI) (FSE:RSR1) (OTCQX:OSIIF) ("Osino” or “the Company”) is pleased to announce an updated mineral resource forits Twin Hills Gold Project
in the Erongo Region of Namibia. The Company’s previous resource announced in July of 2021, has grown substantially along with significant conversion of Inferred resources to Indicated resources. The increase in resources is due to resource expansion in the Twin Hills Central, Bulge and Clouds areas, and delineation of additional resources from new areas (see Figure 1). The mineral resource was estimated from approximately 167,000m of diamond core (DD) and reverse circulation (RC) drilling, of which approximately 153,000m has
been sampled with available assay data. Drill collars were generally spaced at 35m x 35m on surface at the
main targets (Bulge, Twin Hills Central and Clouds), with holes inclined at 60°, resulting in an effective data spacing of 35m laterally and 30m on section lines. Additional targets (Clouds West, Twin Hills North, Kudu and
Oryx) were drilled at 50m x 50m spacing and are reported as Mineral Resources for the first time.
Some areas were infill drilled at closer spacing and drilling is ongoing with the aim of upgrading the inferred mineral resources and to investigate the requirements for additional mineral resource upgrades.
Heye Daun, Osino’s President & CEO commented: “We are very pleased with the results of the intensive 2021 drill program which resulted in this significant increase in Osino’s mineral resources at Twin Hills with total indicated mineral resources having increased more than 4-fold. Likewise, the higher-grade portion of the Indicated mineral resource above a cut-off grade of 0.9 g/t has also significantly increased by about 4.5x to 32.9 Mt at 1.27 g/t. Especially the Clouds and more recent Twin Hills West discoveries have contributed a significant amount to the resource and have extended the mineralized strike of the Twin Hills gold system to more than 3.5km. Additional new mineralized lobes at Twin Hills North and Clouds West have also contributed further resources and will be followed up. The mineralization continues to be open at depth and along strike, and at Clouds and Twin Hills Central in particular, it appears to be getting better with depth. What is particularly noteworthy is that the pit envelope based on US$1700/oz captures the majority of drilled mineralization, suggesting that planned down dip extensions could add to future open-pit mineral resources.”

Pre-Feasibility Study Update
Osino is working on releasing an update on the substantial progress that has been made on the Twin Hills PreFeasibility study (“PFS”). This update will be published in the coming days and a webinar will be held on April
20, 2022, at 11 am ET to discuss the Company’s increased resource base and its progress on the PFS. Geological Data
A total of 167,597m of drilling from 801 holes (98,512m of diamond core from 363 holes and 69,085m of
reverse circulation drilling from 438 holes) has been completed at Twin Hills since 2019. In total, 153,356m of
drilling has been sampled from 153,318 assays, all of which support the Mineral Resource estimate.
DD holes range from 63m to 555m in depth, while reverse circulation RC holes range from 40m to 260m in
depth. The average drilled depth for DD and RC holes is 274m and 160m, respectively. DD holes generally
targeted deeper mineralization while RC holes targeted shallower mineralization due to drilling depth
constraints.
Most of the drillholes were oriented at 160° azimuth and 60° dip, except at Oryx and Kudu where the holes
were drilled at 340° azimuth.
Both the DD and RC holes were sampled at one-meter intervals at the Osino core-yard in Omaruru and the
drill rigs respectively. A sub-sampling process using a riffle splitter was used at the RC drill rig to reduce sample mass. This process was observed in the field by the responsible qualified person (QP) in accordance with
National Instrument 43-101 (“NI 43-101”)requirements and was deemed to be a reasonable and robust method for reducing sample mass whilst producing a representative sub-sample.

Mineral Resource Estimate
Sulfide-hosted gold mineralization was interpreted and modelled from a combination of structural and assay data for each of the Twin Hills mineralization domains (Figure 1). The primary mineralization, hosted in metagreywacke, dips between 60° and 80° and ranges from a few meters to 200m in thickness.
see & read more on
https://osinoresources.com/wp-content/uploads/2022/04/04_13_2022-Osino-PR-Twin-Hills-Mineral-Resource-Update-FINAL.pdf