Adex Mining

Adex Mining Inc. was a Toronto-based Canadian mineral-exploration company whose principal asset was the wholly owned Mount Pleasant property in Charlotte County, New Brunswick. The company was focused on advancing a polymetallic resource project rather than operating a broad portfolio of producing mines or selling consumer-facing products. Mount Pleasant contains two principal mineralized areas: the North Zone, associated mainly with tin, indium and zinc, and the Fire Tower Zone, associated with tungsten and molybdenum. The property covers approximately 1,600 hectares through 102 mineral claims, together with about 405 hectares of surface rights. Its geological setting is the Mount Pleasant Caldera, a Late Devonian volcanic and sedimentary complex within the Appalachian geological region of southern New Brunswick. The deposit's combination of tin, indium, zinc, tungsten and molybdenum gave the project strategic relevance because several of these metals are used in industrial, technology and manufacturing applications. Public descriptions have characterized Mount Pleasant as containing one of North America's major tin deposits and a globally significant indium reserve, although such descriptions should be understood in the context of the cited government and project-resource materials rather than as evidence of commercial production. Adex acquired Mount Pleasant in 1995 and undertook exploration and metallurgical testing focused particularly on the tin-indium mineralization. In 1997, the project was placed on care and maintenance amid weak conditions in the mining industry. The company later reactivated the project in the summer of 2007 and pursued programs intended to move it toward a definitive feasibility study and possible mine reactivation. These programs included exploration drilling, resource-definition work, metallurgical and technical studies, and improvements to tailings-impoundment infrastructure. The North Zone resource estimate cited in the reference material comprises 10.882 million tonnes in the indicated category grading 0.43% tin, 67.8 grams per tonne indium and 0.67% zinc, plus 7.603 million tonnes in the inferred category grading 0.22% tin, 74.6 grams per tonne indium and 0.99% zinc. The Fire Tower Zone resource estimate comprises 13.489 million tonnes indicated at 0.33% tungsten and 0.21% molybdenum, together with 841,700 tonnes inferred at 0.26% tungsten and 0.20% molybdenum. These are mineral-resource figures, not statements of reserves, profitability or production. Mount Pleasant also has a previous production history. Billiton constructed a tungsten mine and mill at the Fire Tower Zone, reportedly investing approximately $150 million, and operated the facility from 1983 to 1985. During that period, the operation milled approximately 990,200 tonnes of tungsten ore at an average grade of 0.35%. The mine closed after difficult economic conditions and a decline in tungsten prices. Surface infrastructure, including storage areas, conveyor galleries, warehouse space and offices, remained on the property and represented part of the project's development history. Adex Mining's public identity was therefore tied to the attempted redevelopment of a historically producing but subsequently inactive polymetallic mining property. The available reference material confirms its Canadian location, Mount Pleasant focus and TSX Venture Exchange trading symbol, but does not establish a reliable current operating status, later ownership outcome, definitive-feasibility result or commercial mine restart. It should be treated as a mineral-exploration company record rather than a currently verified operating mining producer.

Adex Mining Inc. was a Canadian mineral-exploration company headquartered in Toronto and associated primarily with the Mount Pleasant property in Charlotte County, New Brunswick. The property is a polymetallic mineral district containing tin, indium, zinc, tungsten and molybdenum mineralization. Adex's corporate identity and development strategy were closely tied to the effort to evaluate and potentially reactivate this property. Mount Pleasant has a longer history preceding Adex's involvement. The deposits occur within the Mount Pleasant Caldera, a geological structure approximately 13 by 17 kilometres across in southern New Brunswick. The mineralization is hosted by gently dipping Late Devonian volcanic and sedimentary rocks, with layered granitic intrusions and associated mineralization concentrated along the southwestern margin of the caldera. This setting produced two principal exploration targets: the North Zone, focused on tin, indium and zinc, and the Fire Tower Zone, focused on tungsten and molybdenum. The Fire Tower Zone was developed as a tungsten mining operation in the early 1980s. Billiton invested approximately $150 million in the construction of a mine and mill, which operated from 1983 to 1985. The facility milled about 990,200 tonnes of tungsten ore grading 0.35%. A downturn in tungsten prices, together with difficult economic conditions, led to the operation's closure in 1985. Several surface installations, including storage areas, conveyor galleries, warehouse facilities and offices, remained at the site and later formed part of the property's development infrastructure. Adex acquired Mount Pleasant in 1995. Its initial work included exploration and metallurgical testing directed at the tin-indium portions of the property. However, the wider mining-industry downturn led to the property being placed on care and maintenance in 1997. This period reflected the challenge of advancing a technically complex polymetallic project when commodity prices and financing conditions were unfavorable. The company reactivated Mount Pleasant in the summer of 2007. Subsequent work was intended to advance the property toward a definitive feasibility study and possible mine activation. Programs covered both major mineralized zones and included exploration drilling, National Instrument 43-101 resource-estimation work, metallurgical investigation, rehabilitation or upgrading of tailings-impoundment structures and other technical activities needed for a future development decision. The reported North Zone resource consisted of 10.882 million tonnes indicated at 0.43% tin, 67.8 grams per tonne indium and 0.67% zinc, and 7.603 million tonnes inferred at 0.22% tin, 74.6 grams per tonne indium and 0.99% zinc. The Fire Tower Zone resource consisted of 13.489 million tonnes indicated at 0.33% tungsten and 0.21% molybdenum, plus 841,700 tonnes inferred at 0.26% tungsten and 0.20% molybdenum. These classifications describe mineral resources and should not be treated as proved or probable reserves. Adex Mining traded on the TSX Venture Exchange under the symbol ADE. The available reference material identifies the company and its project history but does not provide enough information to establish its current corporate status, later ownership, management succession, financial performance or whether a commercial restart ultimately occurred. Accordingly, the historical record is best understood as that of a Canadian exploration and development company centered on a formerly producing, but not currently verified as operating, polymetallic mine property.

1. 2007Mount Pleasant work was reactivated

   Adex restarted project activities, including drilling, resource estimation, infrastructure work and programs aimed at future feasibility and mine activation.

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2. 1997Project entered care and maintenance

   Mount Pleasant was placed on care and maintenance because of poor conditions in the mining industry.

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3. 1995Adex acquired Mount Pleasant

   Adex Mining acquired the New Brunswick property and began exploration and metallurgical work on its tin-indium mineralization.

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4. 1985Fire Tower operation closed

   The tungsten operation closed after weak economic conditions and a decline in tungsten prices.

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5. 1983Fire Tower tungsten mine entered production

   Billiton's tungsten mine and mill at the Fire Tower Zone began operating at Mount Pleasant.

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Canadian mineral exploration and polymetallic resource-project development

• Mount Pleasant ProjectPolymetallic mineral exploration and mine development1995

  Adex Mining's principal asset was the Mount Pleasant property in Charlotte County, New Brunswick. The property comprised 102 mineral claims covering approximately 1,600 hectares, along with about 405 hectares of surface rights. Its North Zone was investigated for tin, indium and zinc, while the historically producing Fire Tower Zone contained tungsten and molybdenum. Adex's work included drilling, metallurgical testing, resource estimation, tailings-impoundment improvements and technical programs intended to assess a possible future mine restart.

• 2007Reactivate Mount Pleasant development programsStrategy

  Adex sought to advance the property toward a definitive feasibility study and potential mine reactivation.

  What changed. The company resumed exploration and technical work across the tin-indium-zinc and tungsten-molybdenum zones, including drilling, resource estimation and tailings-infrastructure improvements.

  Aftermath. The available material documents renewed project work but does not establish that a commercial mine restart or definitive feasibility outcome was achieved.

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• 1997Place Mount Pleasant on care and maintenanceStrategy

  Weak conditions across the mining industry made continued advancement of the Mount Pleasant project difficult.

  What changed. Adex placed the property into care and maintenance rather than continuing normal exploration and development activity.

  Aftermath. The project remained inactive until Adex reactivated work in 2007.

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• 2007Adex reactivated the Mount Pleasant project

  Adex resumed work at Mount Pleasant and initiated programs covering exploration, resource estimation, infrastructure improvements and preparation for possible feasibility and mine-restart work.

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• 1997Mount Pleasant project placed on care and maintenance

  The Mount Pleasant property was placed on care and maintenance during difficult conditions in the mining industry.

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• 1995Adex Mining acquired the Mount Pleasant property

  Adex Mining acquired the Mount Pleasant property in New Brunswick and began exploration and metallurgical testing focused on its tin and indium mineralization.

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1. Adex Mining