{"id":11001,"date":"2026-09-17T18:17:50","date_gmt":"2026-09-17T17:17:50","guid":{"rendered":"https:\/\/boersenpost.com\/?p=11001"},"modified":"2026-09-17T18:17:51","modified_gmt":"2026-09-17T17:17:51","slug":"en-mre-milestone-resource-estimates-silver-juniors","status":"publish","type":"post","link":"https:\/\/boersenpost.com\/en\/2026\/09\/17\/en-mre-milestone-resource-estimates-silver-juniors\/","title":{"rendered":"MRE Milestone: How Resource Estimates Help Silver Juniors Mature"},"content":{"rendered":"
\"Silver<\/figure>\n

When numbers on paper suddenly carry weight<\/h2>\n

Within a few days of each other, several junior silver miners published updated Mineral Resource Estimates. To an outsider, these look like routine technical filings. To anyone who has spent time in the exploration business, they mark the point where scattered drilling data organizes itself into a structured picture and a project moves one step closer to an economic assessment.<\/p>\n

Experienced capital market participants sometimes react more sharply to an MRE update than to a spectacular individual drill hole. The reason is in the mechanics of what an MRE actually does.<\/p>\n

From discovery report to classified resource: how NI 43-101 makes the difference<\/h2>\n

In Canada, where most of the relevant junior silver miners are listed, NI 43-101 is the regulatory framework for reporting on mineral resources. The standard requires that resource estimates be prepared and endorsed by an independent, qualified expert \u2014 a „Qualified Person.“ Only then may figures be officially communicated.<\/p>\n

The result is a classification into three categories: Inferred<\/em>, Indicated<\/em>, and Measured<\/em>. These are technical tiers with clearly defined data requirements, not marketing terms:<\/p>\n

\n\n\n\n\n\n\n\n
Category<\/th>\nData Basis<\/th>\nPlanning Certainty<\/th>\n<\/tr>\n<\/thead>\n
Inferred<\/td>\nLimited drilling data, rough estimate<\/td>\nLow \u2014 not suitable for economic studies<\/td>\n<\/tr>\n
Indicated<\/td>\nSufficiently dense sampling, geochemical data<\/td>\nMedium \u2014 basis for preliminary economic assessments (PEA)<\/td>\n<\/tr>\n
Measured<\/td>\nTight drill spacing, high data density<\/td>\nHigh \u2014 basis for feasibility studies (FS)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

Resources are not Reserves.<\/strong> A resource describes what is believed to exist in the ground based on current knowledge. A reserve, subdivided into Probable<\/em> and Proven<\/em>, additionally accounts for economic, legal, and technical factors. Only reserves can serve as the basis for a mine plan. Anyone unfamiliar with this distinction will misread MRE announcements.<\/p>\n

\"Stacked<\/figure>\n

Why an update says more than the absolute figure<\/h2>\n

From the current reporting season: one Canadian junior reported an Indicated<\/em> resource of approximately 2.8 million ounces of silver at 47.4 grams per tonne for its tailings project in Ontario. Another company updated its estimate for a primary silver project in Colombia.<\/p>\n

The absolute tonnage matters less than what the update signals in substance.<\/p>\n

    \n
  1. Classification upgrade:<\/strong> When ounces move from the less certain Inferred<\/em> category into Indicated<\/em>, the quality of the underlying data has improved. That opens the path to a Preliminary Economic Assessment (PEA).<\/li>\n
  2. Grade clarity:<\/strong> An updated MRE allows for more precise statements about silver grades. At 47.4 g\/t, the Ontario tailings project has a number that makes an economic discussion possible. Without a reliable grade, there is no credible cash flow model.<\/li>\n
  3. Signal to capital providers:<\/strong> Banks and royalty companies require classified resources as a minimum before any financing due diligence begins. A well-documented MRE is what gets a company into that conversation.<\/li>\n<\/ol>\n