<IR>

International Integrated Reporting Framework


GRI

Global Reporting Initiative Standards for Sustainability Reporting


SASB

Sustainability Accounting Standards Board - Infrastructure Sector – Electric Utilities & Power Generators


TCFD

Task Force on Climate-related Financial Disclosures


UNGP-BHR

United Nations’ Guiding Principles on Business and Human Rights


UN SDG

United Nations Sustainable Development Goals

Statement of Use

First Gen Corporation has reported the information cited in this GRI content index for the period from 1 January to 31 December 2022 with reference to the GRI Standards.


GRI Used

GRI 1: Foundation 2021

MATERIAL TOPICS <IR> GRI SASB TCFD UNGP-BHR UN
SDG
Page
ENVIRONMENT
Climate Change Natural - IF-EU-110a.1 Governance
Strategy
Risk Management
Metrics and Targets
- SDG 7
SDG 13

Chairman's Message

Managing Material Risks and Opportunities

Strategic Positioning

Progress on our Mission

Our Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals

Our Outlook

Corporate Governance

Biodiversity/Nature’s Integrity Natural 304-1: Operational sites owned, leased, managed in, or adjacent to, protected areas and areas of high biodiversity value outside protected areas
304-3: Habitats protected or restored
304-4: Total number of IUCN Red List species and national conservation list species with habitats in areas affected by operations, by level of extinction risk
- - - SDG 14
SDG 15

2022 at a Glance

Natural Capital Performance

Our Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals

Water Use & Management Natural 303-1: Interactions with water as a shared resource
303-2: Management of water discharge-related impacts
303-3: Water withdrawal
303-4: Water discharge
303-5: Water consumption
IF-EU-140a.1
IF-EU-140a.2
IF-EU-140a.3

- SDG 6

Natural Capital Performance

Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals

Waste Management & Circularity Natural 306-1: Waste generation and significant waste-related impacts
306-2: Management of significant waste-related impacts
306-3: Waste generated
306-4: Waste diverted from disposal
306-5: Waste directed to disposal
- -
SDG 12

Progress on our Mission

Natural Capital Performance


Environmental Policy & Management Systems Natural 2-27: Compliance with laws and regulations - Strategy - SDG 7
SDG 14
SDG 15

Intellectual Capital Performance

Natural Capital Performance

Corporate Policies

Greenhouse Gas Emissions Natural 305-1: Direct greenhouse gas (GHG) emissions (Scope 1)
305-2: Energy indirect greenhouse gas (GHG) emissions (Scope 2)
305-3: Other indirect greenhouse gas (GHG) emissions (Scope 3)
305-4: Greenhouse gas (GHG) emissions intensity
IF-EU-110a.1
IF-EU-120a.1
Metrics and Targets - SDG 7
SDG 13

2022 at a Glance

Natural Capital Performance

Our Value Creation Diagram

Pollution Reduction Natural 303-2: Management of water discharge-related impacts
305-7: NOx, SOx, and other significant air emissions
IF-EU-120a.1 - - SDG 7
SDG 12
SDG 13

Natural Capital Performance

First Gen’s Value Created in Support of the Sustainable Development Goals

Conservation of the Natural World/ Resource Efficiency Natural 301-1: Renewable and non-renewable materials used by weight or volume - - - SDG 14
SDG 15
Our Value Creation Diagram
Climate Risk & Strategy Natural Risks & Opportunities 2-22: Statement on sustainable development strategy
201-2: Financial implications and other risks and opportunities due to climate change
IF-EU-110a.3 Risk Management Strategy - SDG 13

Managing Material  Risks and Opportunities

Strategic Positioning

Progress on our Mission

Opportunities in Renewable Energy Natural
Manufactured
EU1: Installed capacity
EU10: Planned capacity
F-EU-000.D Risk Management
Strategy
- SDG 7

2022 at a Glance

What We Do

Strategic Positioning

Manufactured Capital Performance


Energy Efficiency Natural 302-1: Energy consumption within the organization
302-4: Reduction of energy consumption
EU11: Average generation efficiency
- - - SDG 7

Manufactured Capital Performance

Natural Capital Performance

Our Value Creation Diagram

SOCIAL
Health and Safety
(Employees &
Communities)
Human
Social &
Relationship
403-1: Occupational health and safety management system
403-3: Occupational health services
403-4: Worker participation, consultation, and communication on occupational health and safety
403-5: Worker training on occupational health and safety
403-6: Promotion of worker health
403-9: Work-related injuries
403-10: Work-related ill health
413-1: Percentage of operations with implemented local community engagement, impact assessments, and development programs
413-2: Operations with significant actual and potential negative impacts on local communities
EU16: Policies and requirements regarding health and safety
IF-EU-320a.1 -
SDG 3
SDG 6

2022 at a Glance

Managing Material Risks and Opportunities

Acting on Major Disruptions

Human Capital Performance

Social and Relationship Capital Performance

Intellectual Capital Performance

Our Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals

Corporate Policies

SASB Content Index

Gender Equality &
Diversity
Human 2-7: Employees
405-1: Composition of governance bodies and breakdown of employees per employee category according to gender, age group, minority group membership, and other indicators of diversity
406-1: Total number of incidents of discrimination and corrective actions taken
- - Non- discrimination
Human Rights
Grievance
Mechanism
SDG 5
SDG 10

2022 at a Glance

Human Capital Performance

Our Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals

Board of Directors

Senior Management

Human Rights Due
Diligence
Human 2-23: Policy commitment
406-1: Total number of incidents of discrimination and corrective actions taken
- - Human Rights
Assessment
SDG 5
SDG 10

2022 at a Glance

Human Capital Performance

First Gen’s Value Created in Support of the Sustainable Development Goals

Corporate Policies

Human Development Human 401-1: Total number and rates of new employee hires and employee turnover by age group, gender, and region
401-2: Benefits provided to full-time employees that are not provided to temporary or part-time employees, by significant locations of operation
404-1: Average hours of training per year, per employee, by gender, and by employee category
404-2: Programs for skills management and lifelong learning that support the continued employability of employees and assist them in managing career endings
404-3: Percentage of employees receiving regular performance and career development reviews
EU15: Percentage of employees eligible to retire in the next 5 and 10 years
- - Human Rights
Training
SDG 5
SDG 8

2022 at a Glance

Human Capital Performance

Our Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals

Community Relations Social &
Relationship
203-1: Development and impact of infrastructure investments and services supported
411-1: Total number of incidents of violations involving rights of indigenous peoples and actions taken
413-1: Percentage of operations with implemented local community engagement, impact assessments, and development programs
- - Non- discrimination
Human Rights
Grievance
Mechanism
Rights of
Indigenous
People
SDG 1
SDG 2
SDG 3
SDG 4
SDG 5
SDG 6
SDG 7
SDG 10
SDG 11
SDG 17

2022 at a Glance

Strategic Positioning

Social and Relationship Capital Performance

Our Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals

Corporate Policies

Supplier Programme Social & Relationship 204-1: Proportion of spending on local suppliers at significant locations of operation
308-1: Percentage of new suppliers that were screened using environmental criteria
403-1: Occupational health and safety management system
403-3: Occupational health services
403-4: Worker participation, consultation, and communication on occupational health and safety
403-5: Worker training on occupational health and safety
403-6: Promotion of worker health
403-9: Work-related injuries
403-10: Work-related ill health
414-1: New suppliers that were screened using social criteria
- - Labor Practices
and Decent Work
Forced or
Compulsory
Labor
Child Labor
Human Rights
Grievance
Mechanism
SDG 8


2022 at a Glance

Social and Relationship Capital Performance

First Gen’s Value Created in Support of the Sustainable Development Goals

Corporate Policies

Covid-19 Mitigation for Employees Human 403-3: Occupational health services
403-6: Promotion of worker health
- - - SDG 3

2022 at a Glance

Managing Material Risks and Opportunities

Manufactured Capital Performance

Human Capital Performance

Our Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals 


Covid-19 Mitigation for Partner Communities Social &
Relationship
203-1: Development and impact of infrastructure investments and services supported
203-2: Significant indirect economic impacts, including the extent of impacts
413-1: Percentage of operations with implemented local community engagement, impact assessments, and development programs
- - - SDG 3

2022 at a Glance

Managing Material Risks and Opportunities

Manufactured Capital Performance

Human Capital Performance

Social and Relationship Capital Performance

Our Value Creation Diagram

First Gen’s Value Created in Support of the Sustainable Development Goals

Employee Satisfaction Human - - - -

2022 at a Glance

Human Capital Performance

Our Value Creation Diagram

Anti-corruption/ Bribery Governance Human 205-1: Total number and percentage of operations assessed or risks related to corruption and the significant risks identified
2-23: Policy commitments
- - - SDG 16

Acting on Major Disruptions

First Gen’s Value Created in Support of the Sustainable Development Goals

Corporate Policies

Cybersecurity Intellectual
IF-EU-550a.1 - - -

Managing Material Risks and Opportunities

Intellectual Capital Performance

Our Value Creation Diagram


Stakeholder Engagement Social &
Relationship
2-29: Approach to stakeholder engagement - - Rights of
Indigenous
People
Non-
discrimination
Human Rights
Grievance
Mechanism
SDG 17

Our Material Topics, Standards, and References

Social and Relationship Capital Performance

Corporate Policies

Social License to Operate Social &
Relationship
2-6: Activities, value chain, and other business relationships
2-27: Compliance with laws and regulations
- - Rights of
Indigenous
People

What We Do

First Gen Business Model

Social and Relationship Capital Performance

Our Value Creation Diagram

2022 Awards

Power Supply Availability Manufactured EU30: Average plant availability - - - SDG 7 Manufactured Capital Performance
Access & Affordability Manufactured 2-6: Activities, value chain, and other business relationships
EU3: Number of customer accounts
IF-EU-000.A - -

What We Do

First Gen Business Model

Social and Relationship Capital Performance

Our Value Creation Diagram


Investor Relations Financial - - - - SDG 17 Financial Capital Performance
GOVERNANCE
Board & Governance
Structure
Governance 2-9: Governance structure and composition
2-10: Nomination and selection of the highest governance body
2-11: Chair of the highest governance body
2-12: Role of the highest governance body in overseeing the management of impacts
2-13: Delegation of responsibility for managing impacts
2-14: Role of the highest governance body in sustainability reporting
2-16: Communication of critical concerns
2-17: Collective knowledge of the highest governance body
2-20: Process to determine remuneration
2-27: Compliance with laws and regulations
- Governance
Risk Management
Strategy
Non-
discrimination

About the Report

Certification from the Board

Human Capital Performance

Corporate Governance

Board of Directors

Senior Management

Governance Policies & Programs/ Corporate Behavior Governance
Strategy &
Resource
Allocation
Human
2-22: Statement on sustainable development strategy
2-23: Policy commitment
2-27: Compliance with laws and regulations
- Governance -

Who We Are

Corporate Governance

Corporate Policies


Economic Performance Financial 201-1: Direct economic value generated and distributed - - -

2022 at a Glance

Financial Capital Performance

Social and Relationship Capital Performance

Our Value Creation Diagram

Our ESG Values

Business Model Resilience Business Model
Strategy &
Resource
Allocation
2-22: Statement on sustainable development strategy - Strategy - SDG 7 Strategic Positioning

Systemic Risk
Management/Critical
Incident Risk Management

Risks &
Opportunities
2-12: Role of the highest governance body in overseeing the management of impacts
2-22: Statement on sustainable development strategy
- Risk Management -

Managing Material Risks and Opportunities

Acting on Major Disruptions

Progress on our Mission

Innovation & Digital
Transformation
Intellectual - - - - SDG 9
SDG 13
Intellectual Capital Performance

SASB Content Index

The Content Index is referenced on the Sustainability Accounting Standards Board (SASB) Standards, Disclosures for the Infrastructure Sector - Electric Utilities & Power Generators, published in October 2018, which contains topics that are material to First Gen’s business value creation process. This table contains First Gen’s ESG data that is aligned with this standard.

SASB Code Accounting Metric Response
Greenhouse Gas Emissions & Energy Resource Planning
IF-EU-110a.1 (1) Gross global scope 1 emissions (million metric tons) 6.7
(2) Percentage covered under emissions-limiting regulations Not Applicable
(3) Percentage covered under emissions-reporting regulations Not Applicable
IF-EU-110a.3 Description of long-term and short-term strategy or plan to manage scope 1 emissions, emission-reduction targets, and an analysis of performance v. those targets Refer to the sections Strategic Positioning and Progress on our Mission.
IF-EU-110a.4 (1) Number of customers served in markets subject to renewable portfolio standards (RPS) 15
(2) Percentage fulfillment of RPS target by market 100%
Air Quality
IF-EU-120a.1 Air Emissions Air emissions (metric tons) Percentage from facilities within urbanized areas
(1) NOx (excluding N2O) 3,642.3 100%
(2) SOx 355.3 100%
(3) Particulate matter (PM10) 147.1 100%
(4) Lead (Pb) 0 0%
(5) Mercury (Hg) 0 0%
Water Management

Total Percentage with high or extremely high baseline water stress
IF-EU-140a.1 (1) Total water withdrawn (thousands of cubic meters) 2,831,657.93 0%
(2) Total water consumed (thousands of cubic meters) 2,568.46 0%
IF-EU-140a.2 Number of incidents of non-compliance associated with water quantity and/or quality permits, standards, and regulations None 0%
IF-EU-140a.3 Description of water management risks and discussion of strategies and practices to mitigate those risks Refer to the Natural Capital section 0%
Coal Ash Management
IF-EU-150a.1 Amount of coal combustion residuals generated (metric tons) Not Applicable
Percentage recycled (metric tons) Not Applicable
Energy Affordability
F-EU-240a.1 Average retail electric rate for (1) residential Not Applicable
(2) commercial Not Applicable
(3) industrial customers Not Applicable
IF-EU-240a.2 Typical monthly electric bill for residential customers o electricity delivered per month Not Applicable
(1) 500 kWh Not Applicable
(2) 1,000 kWh Not Applicable
IF-EU-240a.3 Number of residential customer electric disconnections for non-payment, percentage reconnected within 30 days Not Applicable
IF-EU-240a.4 Discussion of impact of external factors on customer affordability of electricity, including the economic conditions of the service territory Not Applicable
Workforce Health & Safety
IF-EU-320a.1 (1) Total recordable incident rate (TRIR) 0.14
(2) Fatality rate 0
(3) Near miss frequency rate (NMFR) 0.46
IF-EU-420a.1 Percentage of electric utility revenues from rate structures that (1) are decoupled and (2) contain a lost revenue adjustment mechanism (LRAM) Not Applicable
IF-EU-420a.2 Percentage of electric load served by smart grid technology Not Applicable
IF-EU-420a.3 Customer electricity savings from efficiency measures, by market (MWh) Not Applicable
End-Use Efficiency & Demand
IF-EU-420a.1 Percentage of electric utility revenues from rate structures that (1) are decoupled and (2) contain a lost revenue adjustment mechanism (LRAM) Not Applicable
IF-EU-420a.2 Percentage of electric load served by smart grid technology Not Applicable
IF-EU-420a.3 Customer electricity savings from efficiency measures, by market (MWh) Not Applicable
Nuclear Safety & Emergency Management
IF-EU-540a.1 Total number of nuclear power units, broken down by U.S. Nuclear Regulatory Commission (NRC) Action Matrix Column Not Applicable
IF-EU-540a.2 Description of efforts to manage nuclear safety and emergency preparedness Not Applicable
Grid Resiliency
IF-EU-550a.1 Number of incidents of non-compliance with physical and/or cybersecurity standards or regulations 0
IF-EU-550a.2 (1) System Average Interruption Duration Index (SAIDI) Not Applicable
(2) System Average Interruption Frequency Index (SAIFI) Not Applicable
Customer Average Interruption Duration Index (CAIDI), inclusive of major event days Not Applicable
F-EU-000.A Number of customers served (1) residential 297
(2) commercial
(3) industrial
IF-EU-000.B Total electricity delivered to:
(1) residential
22,352,420
(2) commercial
(3) industrial
(4) all other retail customers
(5) wholesale customers
IF-EU-000.C Length of transmission and distribution lines (km) Not Applicable
F-EU-000.D Total electricity generated (MWh) 22,352,420

Energy Source % of Total Energy Generated

Natural Gas 65.72%

Hydro 1.39%

Geothermal 31.42%

Wind 1.40%

Solar 0.07%
IF-EU-000.E Total wholesale electricity purchased (MWh) 0