ANÁLISIS Y MEDICIONES AMBIENTALES LIMITADA

Part 1 of 7

( A2LA Cert. No. 5877.01) 08/03/2026 Page 1 of 6 S COPE OF ACCREDITATION TO ISO/IEC 17025:2017 A NÁLISIS Y MEDICIONES AMBIENTALES - EXYMA LTDA Angel Guarello 1699 Pedro Aguirre Cerda Santiago, CHILE Alexis Cortes Phone: +56224165335 E NVIRONMENTAL V alid To: December 31, 2027 Certificate Number: 5877.01 I n recognition of the successful completion of the A2LA evaluation process (including an assessment of the organization’s compliance with R205 – A2LA’s Calibration Program Requirements), accreditation is granted to this organization to perform recognized methods using the following testing technologies and in the analyte, categories identified below: E nvironmental Sampling, Gas Analyzers Calibration, Analysis and Field Measurement3 M obile Units: Vehicles A ir Emissions Analysis: Matrix Technology and Analyte Procedure Particulate Matter Emissions from Stationary Sources Particulate Material CH-5 Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-5, rev. 3. December, 2020 A ir Emissions Sampling: Matrix Technology and Analyte Procedure Gaseous Emissions from Stationary Sources Metals: As, Ag, Ba, Be, Cd, Co, Cr, Cu, Hg, Mn, Ni, P, Pb, Sb, Se, Tl, Zn Isokinetic Train, Probe, Filter, and Absorbing Solutions CH-29 Methodologies for measuring emissions from stationary sources, MINSAL ISP CH-29, rev. 1. June 2010 Particulate Matter Emissions from Stationary Sources Particulate Material CH-5 Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-5, rev. 3 December, 2020

Part 2 of 7

( A2LA Cert. No. 5877.01) 08/03/2026 Page 2 of 6 Measurement (Field): Matrix Technology and Analyte/ Analyte Categories Procedure Gases, Particulate Matter Sample and Velocity Traverses (Sampling points identification) for Stationary Sources CH-1 Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-1 rev. 1 March, 1996 Gases, Particulate Matter Sample and Velocity Traverses (Sampling points identification) for Stationary Sources with Small Stacks or Ducts CH-1A Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-1A rev. 1 March, 1996 Gases, Particulate Matter Determination of Flow Velocity and V olumetric Flow in Chimney Gases CH-2 Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-2 rev. 1 March, 1996 Gases, Particulate Matter Determination of Gas Velocity and V olumetric Flow Rate in Small Stacks or Ducts (Standard Pitot Tube) CH-2C Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-2C rev. 1 March, 1996 Gases, Particulate Matter Gas Analysis for Dry Molecular Weight Determination CH-3 Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-3 rev. 1 March, 1996 Gases, Particulate Matter Oxygen, Carbon Dioxide, Carbon Monoxide CH-3A Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-3A rev 1 March, 1996 Gases, Particulate Matter Gas Analysis for Determining Correction Factor of Emission Velocity or Air Excess CH-3B Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-3B rev. 1 March, 1996 Gases, Particulate Matter Determination of Humidity Content in Chimney Gases CH-4 Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH4 rev. 1 March, 1996 Gases Sulfur Dioxide with Instrument Analyzer CH-6C Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-6C rev 1 March, 1996 Gases Nitrogen Oxides with Instrument Analyzer CH-7E Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-7E rev 1 March, 1998 Gases Carbon Monoxide CH-10 Methodologies for measuring emissions from stationary sources, MINSAL, ISP CH-10 rev 1 February, 1998 Gases Carbon Monoxide and Oxygen Measurement with Instrument Analyzer Exempt Resolution No. 2439/2021 SMA Single version - 24-DIC-2021 Based on CH-3A, CH-6C CH-1A, and CH-1 Issues general instruction that establishes measurement methodology for determining the concentration of carbon monoxide (CO) and oxygen (O2) in stationary sources.

Part 3 of 7

( A2LA Cert. No. 5877.01) 08/03/2026 Page 3 of 6 Matrix Technology and Analyte/ Analyte Categories Procedure Gases Response Time Test Assessment Protocol For Validation, Assurance And Quality Control Of Continuous Emission Monitoring Systems (Cems) SMA Exempt Resolution 1743/2019 – Single version 06-12-2019. Gases / Flow Calibration Deviation Test Assessment Gases Linearity Error Test Assessment Gases / Flow Relative Accuracy Test Assessment Particulate Matter Correlation Test Assessment