Orex Exploration

Orex Exploration was a Canadian mineral exploration company founded in 1987 and headquartered in Rouyn-Noranda, Quebec. Its principal business was the acquisition, evaluation, and exploration of mineral properties rather than the operation of a producing mine. The company concentrated on gold prospects in eastern Nova Scotia, especially the Goldboro property and surrounding claims in Guysborough County. The Goldboro property incorporated the sites of several historic gold mines, including the Boston Richardson, Dolliver Mountain, West Goldbrook, and East Goldbrook mines. These operations worked intermittently between 1892 and 1912, establishing the district as a historically recognized gold-producing area. Orex assembled and explored claims covering the historic workings and adjacent geological structures along Nova Scotia's eastern shore. Its main Goldboro property comprised 37 contiguous claims covering approximately 600 hectares and was located roughly 185 kilometres northeast of Halifax. The broader Goldboro Extension land package covered approximately 960.8 square kilometres after Orex and Osisko Mining staked additional claims in 2009. Orex's exploration strategy involved historical-data review, geological mapping, surface sampling, reverse-circulation drilling, and diamond drilling. The company investigated mineralization associated with quartz veins, sulphides, arsenopyrite, and native gold in folded sedimentary rocks of the Meguma Supergroup. Gold at Goldboro was associated with anticlines, vein swarms, and mineralized shale, slate, greywacke, and arenite. Exploration also examined whether parts of the deposit could support shallow open-pit extraction, while higher-grade or deeper zones might be amenable to selective underground mining. In September 2009, Orex reported a National Instrument 43-101-compliant mineral resource estimate. At a 0.5-gram-per-tonne gold cut-off, the estimate totaled approximately 15.866 million tonnes grading 2.21 grams per tonne, containing about 1.086 million ounces across measured, indicated, and inferred categories. At a 1.5-gram-per-tonne cut-off, the reported total was approximately 2.711 million tonnes grading 4.56 grams per tonne, containing about 803,100 ounces. The company noted that historical drilling and incomplete sampling created modelling difficulties. In particular, 96 diamond-drill samples were assigned zero values because the available historical sampling did not satisfy the requirements of the newer geological model, leading Orex to undertake resampling and additional drilling. Orex entered an option and joint venture agreement with Osisko Mining in November 2009. Osisko invested in Orex shares and warrants and could earn an interest in the Goldboro property by meeting staged exploration and development spending commitments. Osisko managed exploration during the option period, while a joint management committee oversaw programs and results. The partnership supported extensive drilling and regional exploration during 2010 and 2011. Osisko later allowed the option to expire in September 2011 after concluding that the drilling indicated a smaller deposit potentially suited to selective underground mining or a relatively shallow open-pit operation, outside its acquisition and exploration strategy at the time. Orex continued exploration on claims outside the Osisko option area. Fieldwork identified additional quartz-vein and gold anomalies on the Goldenville and Stillwater claims, including a reported Goldenville surface sample grading 12.665 grams per tonne gold. Regional work also used reverse-circulation drilling to test basal till and bedrock targets. In 2011, drilling between East Goldbrook and the eastern property boundary identified additional mineralization, including very high-grade half-metre assay intervals reported by the company; such narrow intercepts were exploration results rather than evidence of a producing operation. Orex raised exploration capital partly through share offerings and traded its securities first on the Montreal Stock Exchange and later on the TSX Venture Exchange. The company ultimately ceased to exist as an independent corporate entity after Anaconda Mining Inc. acquired it in a stock-for-stock transaction in 2017. Accordingly, Orex Exploration is best described as a former Canadian gold exploration company whose principal historical asset was the Goldboro district in Nova Scotia.

Orex Exploration was established in 1987 as a Canadian mineral exploration company. It developed a portfolio centered on gold properties in Nova Scotia and raised capital for exploration partly through public-market share issues. Its securities traded on the Montreal Stock Exchange and subsequently on the TSX Venture Exchange. The company's principal asset was the Goldboro property in Guysborough County on Nova Scotia's eastern shore. The land package covered the sites of historic workings including the Boston Richardson, Dolliver Mountain, West Goldbrook, and East Goldbrook mines, which had operated during the period from 1892 to 1912. Orex held a 600-hectare main property consisting of 37 contiguous claims and later expanded its regional land position. In November 2009, following an agreement with Osisko Mining, the companies staked additional contiguous claims covering approximately 960.8 square kilometres around the Goldboro trend. Orex's geological work focused on gold-bearing structures within the Meguma Supergroup. The district's mineralization occurs in and around folded sedimentary rocks, particularly shale and slate, with quartz veins, arsenopyrite, disseminated sulphides, and native gold. The company examined the relationship between mineralization and anticlines, including the Upper Seal Harbour structure. Because the deposit displayed a strong nugget effect, with gold occurring unevenly in coarse and fine forms, resource estimation and assay interpretation were difficult. Historical drill data were incomplete, and Orex undertook resampling and new drilling to improve the geological model. In September 2009, Orex reported a National Instrument 43-101-compliant resource estimate. At a 0.5-gram-per-tonne cut-off, the measured, indicated, and inferred categories totaled 15.866 million tonnes grading 2.21 grams per tonne gold, or approximately 1.086 million ounces. At a 1.5-gram-per-tonne cut-off, the estimate totaled 2.711 million tonnes grading 4.56 grams per tonne, or approximately 803,100 ounces. Orex cautioned that the estimate had been affected by 96 historical diamond-drill samples assigned zero grades because the original sampling was incomplete for the updated model. The November 2009 agreement with Osisko provided funding and a route for potential joint development. Osisko acquired Orex shares and warrants and could earn up to a majority interest in the property by satisfying staged expenditure requirements and completing a prefeasibility study. Osisko became project manager during the option period. Beginning in January 2010, the partners conducted phased diamond drilling across the Boston Richardson Deformation Zone and reverse-circulation drilling on regional targets. Work tested the Ramp, West Goldbrook, Dolliver Mountain, East Goldbrook, and intervening areas. Additional exploration identified gold-bearing bedrock and surface anomalies on wider regional claims. The partnership produced encouraging intersections, including reported high-grade narrow intervals, but the results did not lead to a continuing Osisko option. In September 2011, Osisko allowed the option to expire after stating that the work pointed toward a smaller deposit potentially suited to selective underground extraction or a shallow open pit, neither of which matched its strategic objectives. Orex retained its exploration focus and continued independent fieldwork on claims outside the joint venture area. Reported discoveries included a quartz-vein outcrop on the Goldenville Anticline grading 12.665 grams per tonne gold and other anomalous samples. Orex did not become a documented operating gold producer. Its historical role was that of a junior explorer seeking to define and advance the Goldboro district through drilling, resource modelling, and partnerships. In 2017, Anaconda Mining Inc. acquired Orex in a stock-for-stock transaction. Orex became an Anaconda subsidiary and was no longer an independent publicly traded exploration company.

• 2017

  Acquisition by Anaconda Mining

  [1]Orex Explorationen.wikipedia.org

  Anaconda Mining acquired Orex in a stock-for-stock transaction, ending Orex's independent corporate status.

• 2011

  Osisko option expires

  [1]Orex Explorationen.wikipedia.org

  Osisko allowed its Goldboro option to expire after concluding that the exploration results indicated a deposit outside its strategic focus.

• 2010

  Joint drilling campaign begins

  [1]Orex Explorationen.wikipedia.org

  Orex and Osisko began phased diamond and reverse-circulation drilling across the Goldboro property and regional extension claims.

• 2009

  Goldboro resource estimate published

  [1]Orex Explorationen.wikipedia.org

  Orex reported a National Instrument 43-101-compliant mineral resource estimate for the Goldboro property.

• 2009

  Osisko joint venture established

  [1]Orex Explorationen.wikipedia.org

  Osisko Mining invested in Orex and received an option to earn an interest in Goldboro through staged exploration spending.

• 1987

  Company founded

  [1]Orex Explorationen.wikipedia.org

  Orex Exploration was established in Canada as a mineral exploration company.

A junior mineral exploration company focused on advancing gold properties through geological investigation, drilling, resource estimation, and strategic partnerships.

• Gold exploration property

  Goldboro Gold Property

  Orex's principal exploration asset in Guysborough County, Nova Scotia. The approximately 600-hectare property comprised 37 contiguous claims and included the sites of historic Boston Richardson, Dolliver Mountain, West Goldbrook, and East Goldbrook workings. Exploration targeted quartz-vein and sulphide-associated gold mineralization in folded Meguma Supergroup sedimentary rocks. Orex used geological mapping, sampling, resource modelling, diamond drilling, and reverse-circulation drilling to evaluate possible open-pit and underground mining scenarios.

• Regional gold exploration land package · 2009

  Goldboro Extension Property

  A regional claim package surrounding the main Goldboro strike area. The extension claims covered approximately 960.8 square kilometres and were investigated using regional geological compilation, basal-till sampling, reverse-circulation drilling, and follow-up diamond drilling. Work sought additional Goldboro-style targets beyond the historic mine sites.

• 2010Goldboro phased diamond-drilling campaign

  Canada

  Osisko and Orex conducted phased drilling across the Ramp, West Goldbrook, and Dolliver Mountain areas to validate historical results, extend known mineralization, and test an undrilled section of the deformation zone.

  Outcome. The work expanded geological knowledge and identified additional mineralization, but did not lead to Osisko continuing its option.

  Source
• 2010Goldboro Extension regional exploration

  Canada

  Orex and its geological consultants compiled regional data and used reverse-circulation drilling to test basal-till and bedrock targets across the wider extension property.

  Outcome. Several anomalous and mineralized samples were reported, supporting additional target generation and follow-up work.

  Source

• 2017

  Accept acquisition by Anaconda MiningM&A

  Background

  Orex was a former public mineral exploration company whose principal asset was the Goldboro district.

  Action taken

  Anaconda Mining acquired Orex through a stock-for-stock transaction.

  Aftermath

  Orex became an Anaconda subsidiary and ceased operating as an independent company.

  Source

• 2011

  Continue exploration after Osisko's option expiryStrategy

  Background

  Osisko concluded that the exploration results suggested a smaller deposit potentially requiring selective underground mining or a shallow open pit.

  Action taken

  After Osisko did not meet the option requirements, Orex continued independent field exploration on claims outside the former joint venture area.

  Aftermath

  Orex remained focused on defining additional gold mineralization in the Goldboro district until its acquisition by Anaconda Mining in 2017.

  Source

• 2009

  Enter an option and joint venture with Osisko MiningM&A

  Background

  Orex sought exploration funding and technical support for the Goldboro property while retaining a route to a continuing interest in the asset.

  Action taken

  Orex accepted an equity investment from Osisko and granted Osisko an option to earn an interest through staged exploration and development expenditures.

  Aftermath

  The agreement funded substantial drilling and regional exploration, but Osisko allowed the option to expire in 2011.

  Osisko investment in Orex. C$1.3 million (2009)

  Source

1. 1Orex Explorationen.wikipedia.org