Working with the people and their territories, we continue to build stories of progress

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Working with the people and their territories, we continue to build stories of progress
Working with the people and their territories,
    we continue to build stories of progress
Working with the people and their territories, we continue to build stories of progress
Sustainable
management
Working with the people and their territories, we continue to build stories of progress
Material
 topics
Working with the people and their territories, we continue to build stories of progress
Rates and
  prices
02
Sustainable
management    • Rates and prices______________________________________ 6
                  Invoice____________________________________________ 12
                  Aqueduct and sewerage rates_________________________ 16
                  Cleaning fees_______________________________________23
                  Electricity rates______________________________________ 27
                  Gas rates__________________________________________35
 Content
02
Sustainable
management

                 Rates and prices

                Management before the Colombian National Government and regulatory
                entities for the application of rate methodologies that are fair and efficient
                for customers, accompanied by education and communication activities for
                customers and users to facilitate understanding of the UTILITY bill and the factors
                that affect the rate.

          The rates for publicservices provided by Grupo EPM are regulated. For this reason, the
          Colombian Government and the regulatory entities are permanently proceeding with the
          management so that the rate methodologies that are applied are fair and efficient for
          the clients. The competitive rate is a purpose of Grupo EPM, and it is for this reason that,
          additionally, it works on a business efficiency scheme in its costs and in its processes.

          In the case of large consumers of electricity and natural gas, the Grupo EPM offers rates to
          be negotiated with its customers in the components of the marketing margin and the value
          of the supply. In this case, the other components are regulated (transport, distribution and
                                                                                                                              6
          others).

          Importance

          It allows the recovery of costs and the achievement of the strategic objectives of the company.
          It impacts the trust of stakeholders in the organization by influencing their perception of the
          fairness of rates, by contrasting the Company’s surpluses with people’s income and with the
          proportion in which both increase over time.

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02
Sustainable
management

       Main achievements

       The achievements are cut to December 31, 2020.

        Program, project,
                                               Challenges                     Company                          Follow-up closure                              Compliance
        initiative or action
                                                                                          Work was carried out before the CRA, with the accompaniment
                                                                                          of Andesco, where arguments were presented that from
                               Modify Resolution CRA 688 of 2014 regarding                the point of view of the Company and the sector merited
                                                                            EPM                                                                       Total
                               the calculation of the investment provision.               modifying the norm. The CRA analyzed the issue and
                                                                                          published Resolution CRA 938 of 2020 where the manner of
                                                                                          calculation of the investment provision is modified.
                                                                                          On December 11, 2020, a request for a particular modification
                                                                                          of the Aguas de Malambo rate formula was filed with the CRA
                                                                                          in order to adjust the following variables and parameters: i)
                                                                                                                                                                                                 7
                               Request the rate modification (components:
                                                                          Aguas de        the projection of users, consumption and losses, ii) the Index of
                               POIR and demand) of the aqueduct and                                                                                         Total
                                                                          Malambo         Losses per Standard Billed Subscriber (IPUF *) replace it by the
                               sewerage services.
                                                                                          Economic Level of Losses -NEP- calculated for the Company’s
       Aqueduct and                                                                       own system and iii) the Regulated Work and Investment Plan
       sewerage rates                                                                     -POIR-
                               Request a rate modification from the CRA                   It was possible to define that the development of the tariff
                                                                        Aguas
                               (components: POIR and demand) of the                       modification is by service provision area, this will be presented Partial
                                                                        Regionales
                               aqueduct and sewerage services.                            to the Board of Directors in 2021.
                               Obtain the declaration of regional market by
                               the CRA, for the regional tariff of the aqueduct           The declaration of the regional market for EPM was obtained
                               and sewerage services in the municipalities EPM            by the CRA for a period of up to 20 years, supported by Total
                               of the interconnected system, Caldas and                   Resolution CRA 934 of 2020.
                               Rionegro.
                                                                                          Approval was obtained from the Company’s Board of
                               Make the request for a rate modification of the
                                                                               Emvarias   Directors to proceed with the application before the CRA in Partial
                               cost of final disposal of the Cleaning service.
                                                                                          2021.

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02
Sustainable
management

       Program, project,
                                             Challenges                   Company                       Follow-up closure                           Compliance
       initiative or action
                              Manage the approval of income for the
                              Grupo EPM’s electricity distribution business         Admission approval was obtained. Regarding the
                              and actively participate in the process of EPM        remuneration methodology of the distribution business, it Partial
                              defining the new transmission remuneration            was raised by the regulation commission for 2021.
                              methodology.
                                                                                    23 deliverables out of 52 were completed, with a project
                              At EPM Implement and lead the technical,              progress of 86% over the planned 88% goal. The main
                              regulatory, financial and administrative              milestones achieved were:
       Electricity rates      implementation of the standards issued by             • Incentive and compensation quality scheme certification.
                              CREG related to CREG Resolution 015 of 2018, EPM      • Internal audit for asset management certification.       Partial
                              and monitor and standardize procedures in
                              the Colombian subsidiaries of the business
                              group.
                                                                                    • Satisfactory external audit for AOMs.
                                                                                    • Computer developments required for implementation.
                                                                                    • Employee training on the CREG Resolution
                                                                                                                                                                                       8
                                                                                    • 015.
                              Manage the approval of income for the
                                                                    EDEQ            It was approved in April 2020.                                Total
                              electricity distribution business.
                                                                                    The request for approval of distribution charges was
                                                                                    formalized before the CREG. Approval is expected in the first
                              Manage the approval of natural gas retail             half of 2021.
       Gas rates                                                        EPM                                                                       Partial
                              distribution and marketing charges.                   The CREG did not advance in the definition of the methodology
                                                                                    for remuneration of marketing positions that it had
                                                                                    proposed on its agenda.

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02
Sustainable
management

       Challenges
                                                                                                                              Scope and coverage

        Program, project,
                                                              Challenges                                    Company           Business             Geography
        initiative or action
                               Implement and lead the technical, regulatory, financial and administrative
                               implementation of the standards issued by the CREG related to CREG
       Electricity rates                                                                                  EPM           Energy - T&D         Colombia - Antioquia
                               Resolution 015 of 2018, in EPM and carry out monitoring and approval of
                               procedures in Colombian energy subsidiaries.
                               Respond in a timely manner to the requests made by the CRA regarding
                               the process of issuing the next rate framework for large water supply, EPM                                    Colombia
                               sewerage and Cleaning providers.
       Aqueduct and
                               Request before the CRA the rate modification (components: POIR, demand                   Water and Cleaning
       sewerage rates                                                                                 Grupo EPM                              Colombia

                                                                                                                                                                                          9
                               and / or losses) of the aqueduct and sewerage services.
                               Implement the regional rate for the aqueduct and sewerage services in EPM                                     Colombia - Antioquia
                               the municipalities of the Interconnected System, Caldas and Rionegro.
                               Request before the CRA the rate modification of the cost of final disposal of
       Cleaning fees                                                                                         Emvarias   Water and Cleaning   Colombia - Antioquia
                               the Cleaning service.
                               Communicate the rate increases for the year 2021, with a pedagogical
                               approach that facilitates understanding by the business community about
       Business outreach       the relevance of publicservices as a fundamental input in the production EPM             All businesses       Colombia - Antioquia
       events                  chain and in the economic reactivation of commercial and industrial
                               sectors under the current panorama of the region.

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02
Sustainable
management

                                   Sustainable Development Goals

                                         Associated stakeholders

                      •    Clients and users           •   Colleagues          •   Owner
                                                                                                                10
                      •    State                       •   Investors           •   Partners

                          GRI standards Contents and own indicators
                103 - 1 Explanation of the material topics and its coverage.
               103 - 2 The management approach and its components.
               103 - 3 Evaluation of the management approach.
              EPM - 13 Rates by type of service.

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02
Sustainable
management

                                                   Scope and coverage

              Companies                                             Geography
                                                                    Colombia – Antioquia
              Empresas Públicas de Medellín - EPM
                                                                    Colombia – Caldas

              Aguas Regionales EPM                                  Colombia – Quindío
                                                                    Colombia – Risaralda
              Aguas Nacionales EPM                                  Colombia – Santander
                                                                    Colombia – Norte de Santander
              Empresa de Aguas del Oriente Antioqueño
                                                                    Colombia – Malambo, Atlántico

              Aguas de Malambo                                      Chile
                                                                    El Salvador
              Empresas Varias de Medellín - Emvarias
                                                                                                                      11
                                                                    Guatemala
                                                                    México
              Central Hidroeléctrica de Caldas - CHEC
                                                                    Panamá

              Electrificadora de Santander - ESSA
                                                                    Business
              Company de Energía del Quindío - EDEQ                 Water
                                                                    Sanitation
              Centrales Eléctricas del Norte de Santander - CENS
                                                                    Electricity power
                                                                    Gas

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Invoice

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02
Sustainable
management

          Invoice
          The EPM invoice is the Company’s means to charge for the publicservices it provides and to
          communicate with customers and users through a modern, personalized, close and easy-
          to-interpret format, which also seeks to facilitate their understanding of the invoiced values
          and at the same time keep them updated with information of interest for them.

          Performance in 2020

               The year 2020 was one of great challenges due to the pandemic generated
                                            by COVID-19.

              Faced with this situation, the Company implemented the following actions that
              were reflected in the billing:

                 • Reinstallation and reconnection of energy and gas services.
                 • No suspensions or cuts for non-payment in energy and gas to residential and                           13
                   non-residential customers.
                 • Suspension in the collection of credits and financing.
                 • No charge of interest on arrears.
                 • Payment facilities for debts prior to the COVID-19 health emergency, with
                   special rates and terms.
                 • Payment agreements for clients of the unregulated energy market, in force
                   from March 23 to July 31, 2020.
                 • Deferred payment option for non-residential customers. For energy and gas
                   consumption billed in April, May and June 2020. In aqueduct and sewerage, it
                   was applied for consumptions invoiced between March 17 and July 31, 2020.
                 • For Prepaid Water customers, no charge of 10% of the debt in each recharge,
                   from March 23, 2020 to July 22, 2020.

              A special installment payment program for public services was also activated,
              through this, the client could divide the value of the EPM invoice into up to three
              payments during the month. In addition, the ongoing programs continued:
              Prepaid Energy, Prepaid Water, partial payment of the bill and financing plans.

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02
Sustainable
management

          When interpreting the invoice, it is important to be clear about the concepts that influence the
          values to be paid by customers. The main elements to be considered are the consumption
          units and the rates for each of the billed services. In addition, concepts such as credits, days
          of consumption and work performed, among others, must be taken into account.

          The consumption of each one of the services depends mainly on the habits of use that the
          client has; Variables such as the NUMBER of people who live in the property, the technical
          conditions of the installations and the characteristics of consumer appliances and household
          equipment influence. The days of consumption that are taken into account for billing also
          influence consumption, since they may vary in some months of the year due to factors such
          as the NUMBER of days of the month and holidays, among others.

          In Colombia, the rates for each of the services are defined by the respective regulatory
          commissions through rate formulas that, depending on their application and the different
          variables defined for each of the services, may define increases or decreases in rates.

          In addition, there are other concepts that must be taken into account when reviewing the
          invoice values: delinquency interest for accounts pending or paid after the date, financing
          of consumption, work carried out, new services or purchases made with the Somos credit,
          charges for suspensions or reconnections of the service. Additionally, in some Antioquia
          municipalities, EPM has agreements to bill the services provided by other entities, including                    14
          the Cleaning fee and publiclighting, and other products such as vital insurance and home
          network.

          In 2020, education and communication activities were carried out to facilitate the
          understanding of the invoice:

          Reading to your measure aimed at promoting understanding of the meter reading process
          and the bill. Through home visits and virtual conversations, about 85,500 people were
          approached.

          26 “We are there for you” events, 12 Cuidamundos activities and 941 sensitized community
          leaders, meetings that allowed closeness, pedagogy and the strengthening of relationships
          of trust with clients, users and the community.

          Pedagogical communication campaigns were also carried out to promote the efficient use
          of publicservices during confinement due to COVID-19.

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02
Sustainable
management

                                               Scope and coverage

              Companies                                         Business
                                                                Water
              Empresas Públicas de Medellín - EPM
                                                                Sanitation

              Geography                                         Electric power

              Colombia – Antioquia                              Gas

                                                                                                   15

                                                                                 Volver al contenido
Aqueduct and
  sewerage
    rates

               Volver al contenido
02
Sustainable
management

          Aqueduct and sewerage rates
          The household public services of aqueduct and sewerage are regulated, which is why the
          Grupo EPM makes permanent work before the National Government and the decentralized
          entities of regulation and control, to contribute to the well-being of the population, through
          market conditions that allow provide these services with quality, continuity and coverage at
          competitive and efficient rates, which also guarantee the financial sufficiency of the Company.

          Performance in 2020

                In 2020, the Colombian companies of the Grupo EPM participated in regulatory
                spaces established by the Commission for the Regulation of Drinking Water and
                Basic Cleaning - CRA, by the Superintendency of residential publicServices - SSPD
                and by the Ministry of Housing, City and Territory - MVCT. The predominant theme
                was all the regulatory development associated with the health emergency due
                to COVID-19.

                In Colombia the National Government, through the Ministry of Housing, City                                17
                and Territory and the Regulatory Commission of Water and Basic Cleaning,
                implemented a series of measures on publicservices residential water
                and sewerage: reinstallation and immediate reconnection of the aqueduct
                service, temporary suspensions of rate increases, deferred payment of
                homepublicservices, direct transfer of resources from the General Participation
                System -SGP-, increase in the subsidy limit, among others.

                Important sectoral definitions were presented, such as the provision of
                resources due to differences between planned and executed investments and
                the foundations of the next tariff framework.

          Regulatory work in 2020 consisted of monitoring, participation and work in the general
          regulations for the sector due to the measures implemented by the National Government
          to respond to the economic and social effects of the pandemic. This produced a normative
          compendium constituted by the resolutions of the Commission for the Regulation of Drinking
          Water and Basic Cleaning (CRA) 911, 915, 916, 918, 919, 920, 921, 922, 923, 932 and 936 of
          2020, which created an environment where it was sought to protect customers and users
          and companies so that they can continue with the provision of quality services.

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02
Sustainable
management

          During this year, the Grupo EPM implemented the Management and Results Plan (PGR)
          referred to in Resolution CRA 906 of 2016, which was modified and clarified by Resolution
          CRA 926 of 2020. This resulted in the structuring of a calculation and reporting scheme for
          the 54 management indicators requested in the PGR, which will be consigned in the Single
          Information System (SUI) of the Superintendency of residential publicServices (SSPD). Annually,
          the surveillance and control entity will carry out an analysis of the risk level of each provider
          through the Single Sector Indicator (IUS).

          Finally, among the most important regulatory steps are the issuance of Resolution CRA 938
          of 2020, which modified the provision of resources due to differences between the planned
          and executed investments of the Regulated Works and Investments Plan - POIR. This was
          achieved thanks to the sectoral work articulated through Andesco.

                                            EPM Aqueduct - Full rate (SEC 4)

                           Fixed charge (COP / User)                 2018            2019          2020
                         Metropolitan area                               6,173          6,359          6,551

                           Variable charge (COP /m³)                 2018            2019          2020
                         Interconnected                                  2,357          2,596          2,843                        18
                         Caldas                                          1,779          1,925          2,091
                         Barbosa                                         1,735          1,996          2,305
                         Source: Water and Sanitation Commercial Directorate.
                        * Values as of December of each year in current prices, where the evolution of the
                          charges charged to customers can be appreciated. These values correspond
                          to the full rate, that is, without including the subsidies or contributions that each
                          municipality determines.

                                            EPM Sewerage - Full rate (SEC 4)

                           Fixed charge (COP / User)                 2018            2019          2020
                         Metropolitan area                              3,543           3,650          3,760

                           Variable charge (COP /m³)                 2018            2019          2020
                         Interconectado                                  1,876          2,289          2,407
                         Caldas                                            930          1,084          1,236
                         Barbosa                                          1,191          1,318         1,445
                         Source: Water and Sanitation Commercial Directorate.
                        * Values as of December of each year in current prices, where the evolution of the
                          charges charged to customers can be appreciated. These values correspond
                          to the full rate, that is, without including the subsidies or contributions that each
                          municipality determines.

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02
Sustainable
management

              Aguas regionales

                         Aguas Regionales Aqueduct - Full rate (SEC 4)
                 Fixed charge (COP / User)                  2018           2019           2020
               Region: Occidente                                8,133         8,407           8,661
               Region: Urabá                                    7,001         7,224           7,443

                 Variable charge (COP /m³)                  2018           2019           2020
                                             Region: Occidente
               Santa Fe de Antioquia                           1,569           1,868          1,885
               San Jerónimo                                    1,689           1,799           1,919
               Sopetrán                                        1,280           1,491           1,717
               Olaya                                             884           1,058          1,240
                                                Region: Urabá
               Apartadó                                        1,442           1,544          1,559
               Carepa                                            825           1,006           1,197
               Chigorodó
               Mutatá
                                                               1,552
                                                                1,847
                                                                               1,670
                                                                               1,903
                                                                                               1,613
                                                                                              1,943
                                                                                                                           19
               Turbo                                           1,903          2,026           2,087
               Bajirá                                           1,847          1,903          1,943
               El Reposo                                       1,442           1,544          1,559
               Source: Water and Sanitation Commercial Directorate.

              * Values as of December of each year in current prices, where the evolution of the
                charges charged to customers can be appreciated. The variations correspond
                mainly to the indexation of the value of the rates with respect to the CPI, thus
                allowing the recovery of costs and the provision of a quality service. These values
                correspond to the full rate, that is, without including the subsidies or contributions
                that each municipality determines.

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02
Sustainable
management

                         Aguas Regionales Sewerage- Full rate (SEC 4)
                  Fixed charge (COP / User)                 2018           2019           2020
               Region: Occidente                               4,722          4,864           5,011
               Region: Urabá                                   4,040           4,172         4,298

                 Variable charge (COP /m³)                  2018           2019           2020
                                             Region: Occidente
               Santa Fe de Antioquia                           1,209           1,365          1,042
               San Jerónimo                                    2,104          2,455          2,805
               Sopetrán                                          799           1,170          1,565
               Olaya                                             469             613            775
                                                Region: Urabá
               Apartadó                                        1,900           2,161         2,224
               Carepa                                           1,237          1,402          1,577
               Chigorodó                                        1,701          1,919          1,963
               Mutatá                                            1,117         1,318          1,516
               Turbo                                           1,205           1,337          1,427                       20
               Source: Water and Sanitation Commercial Directorate.

              * Values as of December of each year in current prices, where the evolution of the
                charges charged to customers can be appreciated. The variations correspond
                mainly to the indexation of the value of the rates with respect to the CPI, thus
                allowing the recovery of costs and the provision of a quality service. These values
                correspond to the full rate, that is, without including the subsidies or contributions
                that each municipality determines.

              Aguas de Malambo

                  Aguas de Malambo Acueducto - Tarifa plena (estrato 4)
                             Concept                        2018           2019           2020
               Fixed charge (COP / User)                       6,910           7,118           7,118
               Variable charge (COP /m³)                       1,646           1,696          1,618
               Source: Water and Sanitation Commercial Directorate.

              * Values as of December of each year in current prices, where the evolution of the
                charges charged to customers can be appreciated. The variations correspond to
                the indexation of the value of the rates with respect to the CPI, thus allowing the
                recovery of costs and the provision of a quality service. These values correspond
                to the full rate, that is, without including the subsidies or contributions that each
                municipality determines.

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02
Sustainable
management

                                Aguas de Malambo Sewerage- Full rate (SEC 4)
                                      Concept                                2018           2019          2020
               Fixed charge (COP / User)                                        3,530          3,636          3,636
               Variable charge (COP /m³)                                          821            852            850
               Source: Water and Sanitation Commercial Directorate.

              * Values as of December of each year in current prices, where the evolution of the charges charged
                to customers can be appreciated. The variations correspond to the indexation of the value
                of the rates with respect to the CPI, thus allowing the recovery of costs and the provision of a
                quality service. These values correspond to the full rate, that is, without including the subsidies or
                contributions that each municipality determines.

              Aguas del Oriente

                         Aguas del Oriente - El Retiro - Aqueduct - Full rate (SEC 4)
                                      Concept                                2018           2019          2020
               Fixed charge (COP / User)
               Variable charge (COP /m³)
                                                                                6,786
                                                                                1,792
                                                                                               8,468
                                                                                               2,779
                                                                                                              8,468
                                                                                                              2,779
                                                                                                                                           21
               Source: Water and Sanitation Commercial Directorate.

              * Values as of December of each year in current prices, where the evolution of the charges charged to
                customers can be appreciated. The significant variation in the rate from 2018 to 2019 corresponds
                to the application of the CRA 844 rate methodology of 2018. These values correspond to the full
                rate, that is, without including the subsidies or contributions that each municipality determines.

                         Aguas del Oriente - El Retiro - Sewerage- Full rate (SEC 4)
                                      Concept                                2018           2019          2020
               Fixed charge (COP / User)                                        4,127           4,811          4,811
               Variable charge (COP /m³)                                          679           1,182          1,182
               Source: Water and Sanitation Commercial Directorate.

              * Values as of December of each year in current prices, where the evolution of the charges charged
                to customers can be appreciated. The variations correspond to the indexation of the value
                of the rates with respect to the CPI, thus allowing the recovery of costs and the provision of a
                quality service. These values correspond to the full rate, that is, without including the subsidies or
                contributions that each municipality determines.

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02
Sustainable
management

                               GRI standards Contents and own indicators
                    EPM-13 Rates by type of service.

                                               Scope and coverage

              Companies                                         Geography
                                                                Colombia – Antioquia
              Empresas Públicas de Medellín - EPM
                                                                Colombia – Malambo, Atlántico
              Aguas Regionales EPM

              Empresa de Aguas del Oriente Antioqueño           Business
                                                                Water
              Aguas de Malambo
                                                                Sanitation

                                                                                                                 22

                                                                                                Volver al contenido
Cleaning
  fees

           Volver al contenido
02
Sustainable
management

          Cleaning fees
          The public cleaning service is regulated, which is why the Grupo EPM carries out permanent
          work before the National Government and the decentralized entities of regulation and control,
          to contribute to the well-being of the population, through market conditions that allow the
          service to be provided with quality, continuity and coverage at competitive and efficient rates,
          which also guarantee the financial adequacy of the Company.

          Performance in 2020

                In 2020, the Colombian companies of the Grupo EPM participated in regulatory
                spaces established by the Commission for the Regulation of Drinking Water and
                Basic Cleaning - CRA, by the Superintendency of residential publicServices - SSPD
                and by the Ministry of Housing, City and Territory - MVCT. The predominant theme
                was all the regulatory development associated with the health emergency due
                to COVID-19.

                In Colombia the National Government, through the Ministry of Housing, City                                24
                and Territory and the Regulatory Commission of Water and Basic Cleaning,
                implemented a series of measures on Cleaning public services: increase in
                the frequencies of washing and disinfection of publicareas, deferred payment
                of services, among others. Additionally, for the Cleaning service, sectoral
                definitions were also presented, such as the productivity factor that companies
                must incorporate in their rates, clearer rules were defined for the implementation
                of incentives for use, and the bases for the next rate framework were presented.

          Regulatory work in 2020 consisted of monitoring, participation and work in the general
          regulations for the sector due to the measures implemented by the National Government
          to respond to the economic and social effects of the pandemic. This produced a normative
          compendium constituted by the resolutions of the Commission for the Regulation of Drinking
          Water and Basic Cleaning (CRA) 911, 915, 916, 918, 919, 920, 921, 922, 923, 932 and 936 of
          2020, which created an environment where it was sought to protect customers and users
          and companies so that they can continue with the provision of quality services.

          For its part, Resolution CRA 912 of 2020 defined the productivity factor of the Cleaning service
          at 1.18%. This value had been estimated to display a lower value in the invoice as of April
          2020, however, this term was modified by Resolution CRA 916 of 2020, which defined that

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02
Sustainable
management

          such a factor must be incorporated into the billing of the month following in which the health
          emergency ends.

          In April 2020, the Ministry of Housing, City and Territory, published Resolution 0172, which
          regulates and defines the eligibility criteria that the projects that intend to access the resources
          of the incentive for the use and treatment of solid waste must have. This has led to the
          analysis of the possible alternatives provided by the standard for its implementation and the
          viability of waste recovery projects for the city of Medellín.

                           Rates per user of the ordinary Cleaning service in Medellín
                                Concept                         2018                2019               2020
                  Socio Economic Level 1                               8,113             8,064               8,315
                  Socio Economic Level 2                             11,233               11,173            11,482
                  Socio Economic Level 3                             16,251              16,170             16,587
                  Socio Economic Level 4                             20,109             20,027             20,456
                  Socio Economic Level 5                             41,233              41,134             41,678
                  Socio Economic Level 6                             50,123             50,088             50,332

                  Small Commercial Generators                        51,558              51,713             51,033
                                                                                                                                         25
                  Variable Charge m³ Large
                                                                     51,809             55,634              58,612
                  Generators
                  Source: Emvarias

                 * Values as of December of each year in current prices, where the evolution of the rates charged
                   to customers can be appreciated. The variations correspond to the indexation of the value of the
                   rates, with respect to indicators such as the IPC, the SMMLV, the Fuel Oil Fuel Oil and Diesel Oil
                   ACPM (ICFO), and the earthworks index (IOExp), thus allowing the cost recovery and the provision
                   of a quality service. The decrease in the rate charged to residential users in 2019 compared to
                   2018, corresponds to the decrease in tons presented by each subscriber.

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02
Sustainable
management

                               GRI standards Contents and own indicators
                    EPM-13 Rates by type of service.

                                               Scope and coverage

              Companies                                         Business
                                                                Sanitation
              Empresas Varias de Medellín - Emvarias

              Geography
              Colombia – Antioquia
                                                                                              26

                                                                             Volver al contenido
Electricity
  rates

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02
Sustainable
management

          Electricity rates
          By their nature, home public services are price-regulated. This means that the rates that
          EPM charges its clients are not freely chosen, but are subject to the provisions determined by
          the regulatory entity and supported by Law; in this case it is the CREG –Commission for the
          Regulation of Energy and Gas-. This entity dictates norms that establish the methodologies
          for calculating the rates and they are based on efficiency criteria so that efficient costs are
          transferred to the consumer. In all the regions where it provides its services, Grupo EPM
          seeks that rates are competitive so that they allow cost recovery and the sustainability of
          companies. In 2020, EPM continued its proactive work with the CREG and the National
          Government so that the rules issued for the next rate period reflect fair and efficient rates.

          The costs covered with the rate are the assets required to provide the service through the
          production chain (Generation, transmission, distribution and commercialization), as well as
          the costs of managing, operating and maintaining them, in order to deliver electrical energy
          from energy sources to the end user’s home; additionally, the rate also covers the costs
          associated with the customer service support process.

          Performance in 2020                                                                                            28

                During 2020, EPM continued to offer its clients competitive rates at all voltage
                levels, especially level 1: its price was always among the 4 cheapest in Colombia;
                The national companies of the Grupo EPM were on this same track.

          The Company continued with the correct implementation of CREG Resolution 015 of 2018,
          which determined the new methodology for calculating the distribution charge. Said
          regulations have impacted the rate, given that this component has an important share in the
          unit cost, as it recognizes new projects that promote uninterrupted service with compliance
          with high international quality standards.

          In attention to the provisions issued by the National Government in Colombia to face the
          health emergency caused by COVID-19, EPM accepted, as of March 2020, CREG Resolutions
          012, 058 and 152 of 2020, which enable the rate option mechanism for the regulated market,
          in such a way that the energy tariff published from March to November, did not show
          variations; the December rate increased 0.5% compared to the previous month.

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02
Sustainable
management

          Resolution CREG 104 of 2020 was also applied in June, which defined the monthly calculation
          of the rate for subsistence consumption of SEC 1 and 2, while the state of emergency declared
          by the Ministry of Health lasts, as the lowest variation between inflation and the cost of
          providing the service, giving priority to the benefit of the client.

          In 2020, the management of the energy purchase strategy continued, which represented
          not only savings for users, but also efficiencies for the Company, by positioning itself as one
          of the most prominent buyers in the market, ranking among the top three places.

          The coverage in long-term energy contracts was not less than 88%, which minimized
          exposure to the stock market, providing customers with fair prices and lower than the
          average market price, protecting them from fluctuations in the energy market.

                                    Evolution of energy rates - EPM (COP / kWh)
                               Concept                        2018           2019             2020
                  Socio Economic Level 1                             214            223              228
                  Socio Economic Level 2
                  Socio Economic Level 3
                                                                     268
                                                                     424
                                                                                    278
                                                                                    441
                                                                                                     285
                                                                                                     485
                                                                                                                            29
                  Socio Economic Level 4                             498            519              570
                  Socio Economic Level 5
                  Socio Economic Level 6
                                                                     598            623              684
                  Commercial
                  Industrial
                  Source: Transmission and Distribution Vice Presidency / Energy Commercialization
                  Transactions Unit.

                 * The values correspond to the rate in December 2020.

                                                                                                           Volver al contenido
02
Sustainable
management

                                Evolution of energy rates - EDEQ (COP / kWh)
                            Concept                        2018           2019             2020
               Socio Economic Level 1                             228            234              240
               Socio Economic Level 2                             285            296              300
               Socio Economic Level 3                             450            453              501
               Socio Economic Level 4                             530            533              589
               Socio Economic Level 5
               Socio Economic Level 6
                                                                  636            640              707
               Commercial
               Industrial
               Source: Transmission and Distribution Vice Presidency / Energy Commercialization
               Transactions Unit.

              * The values correspond to the rate in December 2020.

                                                                                                                         30
                                Evolution of energy rates - ESSA (COP / kWh)
                            Concept                        2018           2019             2020
               Socio Economic Level 1                             215            223              235
               Socio Economic Level 2                             269            279              293
               Socio Economic Level 3                             419            450              499
               Socio Economic Level 4                             493            530              587
               Socio Economic Level 5
               Socio Economic Level 6
                                                                  592            636              704
               Commercial
               Industrial
               Source: Transmission and Distribution Vice Presidency / Energy Commercialization
               Transactions Unit.

              * The values correspond to the rate in December 2020.

                                                                                                        Volver al contenido
02
Sustainable
management

                                Evolution of energy rates - CENS (COP / kWh)
                            Concept                        2018          2019             2020
               Socio Economic Level 1                             216           225               240
               Socio Economic Level 2                             270           282               300
               Socio Economic Level 3                             451           453               508
               Socio Economic Level 4                             531           533               597
               Socio Economic Level 5
               Socio Economic Level 6
                                                                  637           640               716
               Commercial
               Industrial
               Source: Transmission and Distribution Vice Presidency / Energy Commercialization
               Transactions Unit.

              * The values correspond to the rate in December 2020.

                                                                                                                          31
                                Evolution of energy rates - CHEC (COP / kWh)
                            Concept                        2018          2019             2020
               Socio Economic Level 1                             234           243               245
               Socio Economic Level 2                             285           296               303
               Socio Economic Level 3                             466           472               515
               Socio Economic Level 4                             548           556               606
               Socio Economic Level 5
               Socio Economic Level 6
                                                                  658           667               727
               Commercial
               Industrial
               Source: Transmission and Distribution Vice Presidency / Energy Commercialization
               Transactions Unit.

              * The values correspond to the rate in December 2020.

                                                                                                        Volver al contenido
02
Sustainable
management

                                   Evolution of energy rates - Afinia (COP / kWh)
                                           Concept                                         2020
                  Socio Economic Level 1                                                                  234
                  Socio Economic Level 2                                                                  285
                  Socio Economic Level 3                                                                  466
                  Socio Economic Level 4                                                                  548
                  Socio Economic Level 5
                  Socio Economic Level 6
                                                                                                          654
                  Commercial
                  Industrial
                  Source: Transmission and Distribution Vice Presidency / Energy Commercialization
                  Transactions Unit.

                 * Afinia began operations in October 2020. The values correspond to the rate in December 2020.
                                                                                                                                   32

                                   Evolution of energy rates - ENSA (USD / kWh)
                                Concept                       2018               2019              2020
                  Residencial                                        0.17                0.2              0.17
                  Commercial                                         0.21               0.24              0.22
                  Industrial                                         0.18               0.21              0.19
                  Source: Transmission and Distribution Vice Presidency / Energy Commercialization
                  Transactions Unit.

                 * The values correspond to the rate in December 2020.

          The reduction was due to lower energy costs, given the reduction in fuel costs.

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02
Sustainable
management

                                  Evolution of energy rates - Delsur (USD / kWh)
                                Concept                       2018          2019              2020
                  Residencial                                        0.21        0.228               0.192
                  Commercial                                         0.19        0.206               0.171
                  Industrial                                         0.16          0.169             0.136
                  Source: Transmission and Distribution Vice Presidency / Energy Commercialization
                  Transactions Unit.

                 * The values correspond to the rate in December 2020.

          The variations are mainly due to the decrease of around 24% (Delsur data in December 2020
          figures) in the price of energy between December 2019 and December 2020, these variations are
          due to the decrease in the price of oil.                                                                            33

                                   Evolution of energy rates - Eegsa (USD / kWh)
                                Concept                       2018          2019             2020
                  Baja tensión simple                                0.14           0.17             0.16
                  Source: Transmission and Distribution Vice Presidency / Energy Commercialization
                  Transactions Unit.

                 * The values correspond to the rate in December 2020.

          The variations are mainly due to the decrease of around 24% (Delsur data in December 2020
          figures) in the price of energy between December 2019 and December 2020, these variations are
          due to the decrease in the price of oil.

                                                                                                             Volver al contenido
02
Sustainable
management

                                  GRI standards Contents and own indicators
                       EPM-13 Rates by type of service.

                                                   Scope and coverage

              Companies                                             Colombia – Caldas
                                                                    Colombia – Quindío
              Empresas Públicas de Medellín - EPM
                                                                    Colombia – Risaralda
              Central Hidroeléctrica de Caldas - CHEC               Colombia – Santander
                                                                    Colombia – Norte de Santander
              Electrificadora de Santander - ESSA
                                                                    Colombia – Malambo, Atlántico
              Company de Energía del Quindío - EDEQ                 Colombia – Bolívar                               34
                                                                    Colombia – Cesar
              Centrales Eléctricas del Norte de Santander - CENS
                                                                    Colombia – Córdoba

              Afinia                                                Colombia – Sucre
                                                                    Colombia – Sur de Magdalena
              Distribuidora de Electricidad del Sur - Delsur        El Salvador

              Company Eléctrica de Guatemala - Eegsa                Guatemala
                                                                    Panamá
              Elektra Noreste - ENSA

              Geography                                             Business
              Colombia – Antioquia                                  Electric power

                                                                                                    Volver al contenido
Gas
rates

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02
Sustainable
management

          Gas rates
          The domestic public service of natural gas through pipeline networks is regulated in prices
          by the Energy and Gas Regulation Commission - CREG. Under the definition of specific
          remuneration methodologies for each activity in the natural gas value chain (Production,
          transportation, distribution and marketing), this regulatory entity seeks to guarantee the
          transfer of efficient investment and administration, operation and maintenance costs to the
          customers.

          It is understood that every rate is comprehensive in that it involves coverage and a level of
          quality of service. EPM seeks, in all the towns where it provides this service, that the rates are
          competitive and allow the recovery of costs and the sustainability of the Company.

          The marketing cost, which is charged today through a fixed fee, pays for the entire customer
          service support process.

          Performance in 2020

                                    Evolution of gas rates - Integrated EPM (COP / m3)
                                                                                                                                                36
                                   Concept                                2018               2019                2020
              Socio Economic Level 1                                              876                928               1,004
              Socio Economic Level 2                                              946              1,026               1,144
              Socio Economic Level 3                                            1,694              1,884               2,168
              Socio Economic Level 4                                            1,686              1,884               2,168
              Socio Economic Level 5                                             1,961             2,201              2,552
              Socio Economic Level 6                                            1,867              2,099              2,456
              Non-residential sector (Commercial + Industrial)                  1,489               1,491              1,780
              Commercial                                                        1.497              1,500               1,793
              Industrial                                                         1.481             1,482               1,767
              Vehicular Gas                                                       964              1,024               1,025
              Source: Gas Vice Presidency, Commercial Management

          * Average rate (including the fixed charge) based on the average consumption by stratum, of the municipalities of
            Medellín, Barbosa, Girardota, Copacabana, Bello, Envigado, ITAGÜÍ, Sabaneta, La Estrella, Caldas, La Ceja, La
            Unión, El Retiro, Sonsón, Apartadó, Turbo, Chigorodó, Carepa, Necoclí, Arboletes, Frontino, Cañasgordas, Fredonia,
            Santa Bárbara, Jardín, Jericó, San Juan de Urabá, Abejorral, Angelópolis, Belmira, Betania, Betulia, Caramanta,
            Carolina del Príncipe, Cocorná, Concordia, Gómez Plata, Granada, Guadalupe, Hispania, Montebello, Mutatá,
            Pueblorico, Puerto Nare, Salgar, San Carlos, San Luis, San Pedro de Urabá, San Rafael, Támesis, Tarso, Titiribí,
            Urrao, Valparaíso, Venice, Maceo, Amalfi, Santo Domingo, Caracolí, Yolombó, San Vicente, Ituango, Liborina,
            Olaya, Sabanalarga, San Andrés de Cuerquia, Valdivia, Concepción, Dabeiba, Remedios, San José de la Montaña,
            San Roque (urban), Toledo, Vegachí and Yalí.

                                                                                                                               Volver al contenido
02
Sustainable
management

                                     Evolution of gas rates - EPM Markets with
                                          investment resources (COP / m3)
                                 Concept                   2018                2019               2020
                    Socio Economic Level 1                         704                 727               749
                    Socio Economic Level 2                         923                 952               975
                    Socio Economic Level 3                       2,996                3,141            3,367
                    Socio Economic Level 4                       2,945              3,156              3,378
                    Socio Economic Level 5                       4,321              4,679              5,293
                    Socio Economic Level 6                       3,805              3,955               4,175
                    Commercial                                   3,297              3,318               3,591
                    Industrial                                   2,995              3,032              3,355
                    Source: Gas Vice Presidency, Commercial Management

                   * Average rate (including the fixed charge) based on the average consumption by stratum, of
                     the municipalities of Guatapé, El Peñol, Yarumal, San Pedro de Los Milagros, Santa Rosa de
                     Osos, Entrerríos, Donmatías, Santa Fe de Antioquia, San Jerónimo and Sopetrán, Amagá,
                     Puerto Berrío, San Jose del Nus and Cisneros.

                         Evolución de las tarifas de gas – EPM Integrado (COP / m3)                                                37
                                 Concept                   2018                2019               2020
                    Socio Economic Level 1                       1,488              1,387               1,301
                    Socio Economic Level 2                         854                 953                921
                    Socio Economic Level 3
                                                                 3,751              3,531              3,666
                    Socio Economic Level 4
                    Socio Economic Level 5
                                                                 4,501              4,238              4,399
                    Socio Economic Level 6
                    Commercial
                                                                 4,085              4,129              3,992
                    Industrial
                    Vehicular gas                                1,250                1,195             1,196
                    Source: Gas Vice Presidency, Commercial Management

                   * Average rate (including the fixed charge) based on the average consumption by stratum,
                     of the municipalities of Guarne, Marinilla, Rionegro and Santuario.

          As of the March / 2018 billing, CREG approved new markets and temporary distribution
          charges for the municipalities served by EPM. It defined an integrated market and 8
          submarkets that correspond to the municipalities to which investment resources from the
          Nation were approved. The new regulatory framework defined in CREG Resolution 202/2013
          also began to be applied.

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02
Sustainable
management

          For the municipalities of the Southeast, the previous regulatory framework (CREG 011/2003)
          and its approved charges continued to be applied. As of the May / 2020 billing, tariff paths
          defined in CREG 048/2020 are applied.

          The variation of the rate in SEC 1 and 2 corresponds to the first 20 m3. The variation is not
          comparable since the calculation depends on the behavior of the CPI and the maximum
          percentages of allowable subsidies.

          The average rates are obtained from the average consumption of each market. The rate
          increases for 2020 were due to increases in the TRM of 15% and updating of supply contracts
          at the beginning of the year. The increase was also due to the recovery of the rate path of
          distribution charges as of March / 2020.

                            Subsidies and contributions - Gas EPM (COP millions)
                                        Concept                          2019                2020
                         Subsidy                                              51,902              82,202
                         Contribution                                         12,400              17,494
                         Deficit                                            -39,502               64,708                       38
                         Source: Transmission and Distribution Vice Presidency / Energy
                         Commercialization Transactions Unit.

                        * The increase in the surplus in 2020 is due to the application of the rate path of
                          CREG resolution 048/2020, and the additional 10% of subsidy granted.

                                                                                                              Volver al contenido
02
Sustainable
management

                               GRI standards Contents and own indicators
                    EPM-13 Rates by type of service.

                                               Scope and coverage

              Companies                                         Business
                                                                Gas
              Empresas Públicas de Medellín - EPM

              Geography
              Colombia – Antioquia

                                                                                            39

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