Clarification for Press Release Issued Earlier Today

(TheNewswire)

April 15, 2026 – TheNewswire -Toronto, Canada. BacTech Environmental Corporation (CSE:BAC,OTCQB:BCCEF) would like to clarify that Mirarco, is a co-inventor ofBacTech's Zero Tailings™ technology. Mirarco'scontribution was mistakenly omitted from today's announcement,and we are grateful for Dr. Mykytczuk's leadership andMirarco's ongoing partnership in bringing this innovation tomarket.

This technology development would not be possiblewithout the research funds secured through MIRARCO from NaturalResources Canada, Critical Minerals Research Development andDemonstration, the Strategic Innovation Fund through the MiningInnovation Commercialization Program, Ontario Centre of Innovation,Critical Minerals Innovation Fund (Ontario Ministry of Energy andMines), the Northern Ontario Heritage Fund Industrial Research ChairProgram, institutional support through Laurentian University andCambrian College, and industrial support from Vale Base Metals.

BacTech Environmental Corporation is a leader incommercial bioleaching, utilizing naturally occurring bacteria torecover valuable metals while stabilizing harmful elements such asarsenic. The Company is advancing a fully permitted 50-tonne-per-daybioleach facility in Tenguel–Ponce Enríquez, Ecuador, and isdeveloping its proprietary Zero-Tailings critical minerals recoverytechnology in Sudbury, Canada with Mirarco. 

BacTech Files Zero Tailings™ Patentin Canada and the United States, Converting Mining Waste intoFertilizer, Critical Minerals, and Industrial Products

National filings in Canada and theU.S. follow BacTech’s original international patent applicationfiled April 7, 2025, protecting a breakthrough process that convertssulphide and iron tailings into marketable products — producing zerowaste.

TORONTO, ON — April 15, 2026 —TheNewswire - BacTech Environmental Corporation, a leader inbioleaching-based mineral processing, today announced the nationalpatent filings of its proprietary Zero Tailings™ technology in bothCanada and the United States. The filings, made April 14, 2026, followthe company’s original international (PCT) patent application filedon April 7, 2025, and represent a major step in commercializing aprocess that the company believes will fundamentally change how theglobal mining industry manages waste.

The mining industry generates hundreds of millions oftonnes of tailings — the residual slurries left behind afterextracting primary metals — each year. These tailings pondsrepresent significant long-term environmental liabilities, includingthe risk of acid mine drainage and heavy-metalcontamination. BacTech’s Zero Tailings™ process is designed toeliminate this liability entirely.

How Zero Tailings™ Works

Zero Tailings™ combines BacTech’s provenbioleaching technology with existing downstream processingtechnologies to put every element present in a tailing into solution— and then recover each element as a saleable product. Applied tosulphide and iron tailings, the process produces four principalproduct streams:

•  Magnetite —high-purity iron oxide supplied to the steel and pigmentindustries;

•  Ammonium Sulphate Fertilizer — a nitrogen-and-sulphur fertilizer suitable for broadagricultural markets;

•  Critical Minerals —recovered in elemental form to supply clean-energy andadvanced-manufacturing supply chains; and

•  Silica —industrial-grade silicon dioxide for construction, electronics, andspecialty chemical applications.

Because the process is designed to extract a productfrom every element present in the tailing, there is no residual wastestream — hence the name Zero Tailings™.

A Critical Answer to a GlobalFertilizer Crisis

The timing of BacTech’s Zero Tailings™ patentfilings carries particular significance for global agriculture.Conflict in the Middle East has severely disrupted shipping throughthe Strait of Hormuz — a critical chokepoint through which anestimated 30 percent of globally traded fertilizer passed in 2024. Theresulting supply shock has sent nitrogen fertilizer prices surging,with urea prices up as much as 49 percent and ammonia up approximately20 percent since the disruption began, placing enormous pressure onfarmers in North America and around the world.

BacTech’s Zero Tailings™ process produces ammoniumsulphate — a dual-nutrient fertilizer providing both nitrogen andsulphur — as a direct by-product of treating sulphide and irontailings. Unlike conventional fertilizer production, which relies onnatural gas feedstocks and long international supply chains,BacTech’s ammonium sulphate is generated through a biologicalprocess applied to existing mining waste stockpiles. The result is adomestically producible, sustainably derived fertilizer that can bemanufactured in Canada and the United States — independent of thegeopolitical supply disruptions currently driving global food securityconcerns.

“While farmers are facing historicfertilizer costs driven by instability halfway around the world,BacTech is developing a process that produces ammonium sulphatefertilizer right here at home — from mine waste that already existsin our own backyard. That isthe kind of supply chain resilience that North American agricultureurgently needs.”

— Ross Orr, President & CEO,BacTech Environmental Corporation

Ammonium sulphate produced through BacTech’sbioleaching process is a biologically derived fertilizer, generated bynaturally occurring bacteria rather than through energy-intensiveconventional synthesis. This positions the product favourably with thegrowing segment of agricultural buyers and food producers seekingsustainable, traceable inputs — and potentially opens pathways forpremium pricing in specialty and certified sustainable markets.

Converting a Liability Into a ProductPortfolio

“Zero Tailings™ is exactly whatits name implies — a future where mining leaves nothing behind.Filing in Canada and the United States underscores our commitment toprotecting this technology in the markets where we intend to deploy itfirst. We are converting an industry liability into a portfolio ofin-demand products, and these patent filings are a critical milestonein making that vision a commercial reality.”

— Dr. Paul Miller,  ChiefTechnology Officer, BacTech Environmental Corporation

Strategic Significance of Canada andU.S. Filings

Canada and the United States represent two of theworld’s most significant mining jurisdictions, collectively hostingthousands of active and legacy tailings facilities. Both countrieshave enacted, or are advancing, regulatory frameworks that increasethe financial burden on mine operators associated with tailingsstorage and long-term environmental monitoring. BacTech believes thatZero Tailings™ addresses these regulatory pressures directly byoffering operators a path to full materials recovery and siteremediation.

The national filings also position BacTech ahead ofgrowing investor and regulatory demand for ESG-compliant miningpractices. With critical mineral security a priority for bothgovernments, a process that recovers those minerals from existingwaste streams — rather than requiring new primary extraction —aligns directly with federal supply-chain strategies on both sides ofthe border.

Patent Timeline

April 7, 2025 —  Original international (PCT) patent application filed for ZeroTailings™

April 14, 2026 —  National phase filings submitted in Canada and the UnitedStates

About BacTech EnvironmentalCorporation

BacTech Environmental Corporation is a Toronto-basedenvironmental technology company specializing in bioleaching solutionsfor the mining and remediation industries. The company’s proprietaryprocesses use naturally occurring bacteria to liberate metals andother elements from sulphide mineral matrices, enabling the recoveryof value from materials that conventional metallurgy cannot processeconomically. BacTech is focused on delivering commercially viable,environmentally responsible solutions that eliminate tailings,remediate contaminated sites, and supply critical minerals to globalmarkets.

For Further Information:

Ross Orr  | President & CEO, BacTech Environmental Corporation

E: borr@bactechgreen.com

W: www.bactechgreen.com

This press release containsforward-looking statements. Actual results may differ materially fromthose projected. Zero Tailings™ is a trademark of BacTechEnvironmental Corporation.

# # #

Copyright (c) 2026 TheNewswire - All rights reserved.