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Prologue — From Marketing ESG to Regulatory ESG

When BlackRock's Larry Fink declared in 2020 that "climate risk is investment risk," many treated ESG as marketing language. After the 2022 US anti-ESG backlash and the 2023-2024 wave of SEC greenwashing enforcement, the market stripped out the advertising side and redefined ESG as **the infrastructure of disclosure, measurement, and verification**.

In 2024 the ISSB IFRS S1/S2 global baseline took effect, and the EU's CSRD entered its first reporting cycle. The US SEC adopted its climate disclosure rule in March 2024 but parts are stayed pending litigation. Korea announced a mandatory ESG disclosure roadmap in 2025, phasing in from listed companies with assets over 2 trillion KRW starting in 2026. Japan finalized its SSBJ standards in 2025 and will adopt them from the fiscal year 2027.

The ESG data market itself was reorganized. MSCI ESG Research, Sustainalytics (acquired by Morningstar), S&P Global (which absorbed Trucost and RobecoSAM), LSEG's Refinitiv ESG, ISS ESG, FTSE Russell, Bloomberg ESG, Vigeo Eiris (Moody's), and RepRisk command the global market. In Korea, KCGS (Korea ESG Standards Institute) and Sustinvest are the local standard; in Japan, the JPX-Nikkei 400 ESG index and GPIF's own assessment dominate the domestic market.

This article draws that map. Who scores what, with which methodology; what ISSB, CSRD, and the SEC mandate; how Scope 1/2/3 is computed; how green bonds and SLLs are certified; and how GPIF and KCGS run their ESG strategies.

Chapter 1 · The Big Picture of ESG Data Providers

ESG data providers fall into roughly three groups.

| Group | Representatives | Rating Model |

| --- | --- | --- |

| Global comprehensive | MSCI, Sustainalytics, S&P, LSEG Refinitiv, ISS, FTSE Russell, Bloomberg | Industry-relative + materiality + external news |

| Risk screen | RepRisk, Vigeo Eiris | NGO/media-based controversy detection |

| Regional specialist | KCGS, Sustinvest (Korea), JPX indices, Rakuten ESG (Japan) | Reflect domestic regulation and practice |

Methodologies split into two camps. **Outside-in** (Sustainalytics, RepRisk): measure risk exposure as seen from outside. **Inside-out** (GRI, CSRD): a company's impact on society and the environment (impact materiality). MSCI weights by industry, S&P uses the CSA survey, Refinitiv uses disclosed data, ISS combines proxy advisory, and FTSE uses index-inclusion criteria — for the same company, different models can produce very different scores.

The low correlation among ESG scores (rating divergence) is a recurrent academic finding. Berg, Kölbel, and Rigobon (MIT Sloan, 2022) report an average correlation of about 0.54 across six major providers, versus around 0.99 for credit ratings.

Chapter 2 · MSCI ESG Ratings — The Industry-Relative Standard

MSCI ESG Research grew out of Innovest (1999) and the integration of RiskMetrics and KLD into an industry standard. The core is the **AAA-CCC seven-grade scale**, **industry-relative ranking**, and **materiality weighting**.

Workflow:

1. Pick the key issues for each industry out of 35 ESG issues (borrowing from the SASB materiality matrix).

2. Score risk exposure and risk management on each issue.

3. Derive a 0-10 score by position versus the industry average.

4. Take a weighted average and map to seven grades (AAA = 8.6+, CCC = 0-1.4).

MSCI ESG materiality matrix (conceptual — key issues per industry)

sector: Automobile Manufacturing

key_issues:

environment:

- id: ENV_CC_PRODUCT_CARBON_FOOTPRINT

weight: 17

rationale: "fleet CO2 standards, EV transition"

- id: ENV_CC_CLEAN_TECH

weight: 10

rationale: "EV powertrain capability"

social:

- id: SOC_PROD_SAFETY_QUALITY

weight: 17

rationale: "recalls, NHTSA enforcement"

- id: SOC_LABOR

weight: 6

rationale: "UAW strike risk, supplier labor"

governance:

- id: GOV_CORP_BEHAVIOR

weight: 12

rationale: "antitrust, bribery"

- id: GOV_BOARD

weight: 16

rationale: "independence, audit, succession"

universe: 4500

update_cadence: annual_with_intra_year_revisions

A key subtlety: **AAA-CCC is not an absolute score but a relative position within the industry**. So Tesla's AAA and ExxonMobil's BB indicate where each sits within its own industry, not a direct comparison between the two firms. Retail investors often miss this.

Chapter 3 · Sustainalytics (Morningstar) — What a Risk Rating Means

Sustainalytics started in the Netherlands in 1992 and was acquired by Morningstar in 2020. Its flagship output is the **ESG Risk Rating** — lower scores are better (the opposite scale from MSCI).

- 0-10: negligible

- 10-20: low

- 20-30: medium

- 30-40: high

- 40+: severe

The central concept is **unmanaged risk**: total ESG risk exposure minus the portion the company manages through policies and initiatives, leaving the residual risk as the score.

ESG Risk Rating

= Exposure (sector and business model)

- Managed Risk (policies and evidence of execution)

= Unmanaged Risk (the score)

Sustainalytics distributes data through Morningstar Direct, Bloomberg, FactSet, and Refinitiv, and Morningstar uses it as the backbone of its own fund ESG scores (Sustainability Rating, Globes). Morningstar's ESG Screener is the most common retail tool for comparing funds to their category average.

Chapter 4 · S&P Global ESG Scores — Built on the CSA Survey

The S&P Global ESG Score is operated through the acquired RobecoSAM Corporate Sustainability Assessment (CSA). Each year roughly 7,000 companies receive a 600-question CSA questionnaire, and responses are verified against external sources before scoring.

The CSA's signature is **self-reporting plus verification plus industry weights**. Scores are expressed as industry percentiles and become the basis for inclusion in the Dow Jones Sustainability Index (DJSI). Combined with Trucost (acquired 2016) environmental data and RobecoSAM data, it forms S&P Global ESG Solutions.

| Component | Source | Verification |

| --- | --- | --- |

| Governance & Economic | CSA survey + disclosure | External audit |

| Environmental | CSA + Trucost | Quantitative model |

| Social | CSA + controversies | Media/NGO monitor |

| Industry-specific | Industry module | Industry weighting |

DJSI World, DJSI Emerging Markets, and the S&P 500 ESG Index all rest on this score.

Chapter 5 · LSEG Refinitiv ESG — Quantitative Scores from Reported Data

When LSEG (London Stock Exchange Group) acquired Refinitiv in 2021, the ESG line-up came with it. Refinitiv ESG Scores model **630+ data points extracted from disclosures, reports, news, and NGO material**.

They are grouped into ten categories (resource use, emissions, innovation, workforce, human rights, community, product responsibility, management, CSR strategy, shareholders) and category weights are adjusted by industry. Scores run 0-100, and are mapped to letter grades (D-, D, D+, C-, C, C+, B-, B, B+, A-, A, A+).

Refinitiv's strength is the depth of its time series — scores exist back to 2002, covering 9,000+ global companies. The ESG Combined Score adjusts the ESG Score by multiplying with an ESG Controversies score (media-driven negative events).

Chapter 6 · ISS ESG — Combined with Proxy Advisory

ISS (Institutional Shareholder Services) was founded in 1985 as a proxy advisory firm and reinforced its ISS ESG line in 2018 (integrating oekom). It is a hybrid model that provides proxy advisory recommendations and ESG assessments together.

Flagship products:

- ISS ESG Corporate Rating (formerly oekom)

- ISS ESG Governance QualityScore

- Carbon & Climate Data

- Norm-Based Research (UNGC, OECD Guidelines compliance)

- Controversial Weapons screen

- Sector-Based Screening

The **Governance QualityScore** in particular is tightly tied to ISS proxy recommendations and is the dataset asset managers refer to most during annual meeting season. Board independence, compensation structure, shareholder rights, and audit/risk committee composition are the key variables.

Chapter 7 · FTSE Russell ESG and FTSE4Good — Index Inclusion Criteria

FTSE Russell is the LSEG-owned index provider. It launched the FTSE4Good series of ESG indices in the late 1990s and now runs ESG Ratings alongside a dedicated index line-up.

FTSE ESG Ratings structure

─ Environmental Pillar

├─ Climate Change

├─ Pollution & Resources

├─ Water Security

├─ Biodiversity

└─ Environmental Supply Chain

─ Social Pillar

├─ Customer Responsibility

├─ Health & Safety

├─ Human Rights & Community

├─ Labour Standards

└─ Social Supply Chain

─ Governance Pillar

├─ Anti-Corruption

├─ Corporate Governance

├─ Risk Management

└─ Tax Transparency

Score: 0-5 (weighted average per pillar)

FTSE Russell's edge is integration with the index licensing business. Russell 1000 ESG, FTSE Developed ex US ESG Low Carbon Select, and the FTSE Climate Risk-Adjusted World Index all draw on these ratings.

Chapter 8 · Bloomberg ESG and RepRisk — Disclosure and Controversy

Bloomberg provides two different datasets rather than a single ESG score.

1. **Bloomberg ESG Disclosure Score**: a quantitative indicator of how much a company discloses — a measure of disclosure completeness, not of performance.

2. **Bloomberg ESG Scores**: a separate model that scores environmental, social, and governance performance (launched in 2020).

ESG data on the Bloomberg Terminal is the data stream asset managers use most routinely.

RepRisk (Switzerland) takes a different approach. It matches external news, NGO reports, regulator statements, and social media against 28 ESG issue keywords to compute the **RepRisk Index (RRI, 0-100)** and **RepRisk Rating (AAA-D)**. It does not rely on self-reported data — a flagship example of the outside-in model. It is widely viewed as the most effective for catching greenwashing.

Chapter 9 · Vigeo Eiris (Moody's) and Other European Providers

France's Vigeo Eiris was acquired by Moody's in 2019 and became Moody's ESG Solutions. It is strong in European corporate and sovereign assessments and is a major supplier of green bond second-party opinions (SPO).

| Provider | HQ | Strength |

| --- | --- | --- |

| MSCI ESG | US | Indices and industry-relative ratings |

| Sustainalytics | NL/CA | Risk rating, Morningstar funds |

| S&P Global ESG | US/CH | CSA survey, DJSI |

| LSEG Refinitiv | UK | Long disclosure time series |

| ISS ESG | US/DE | Combined with proxy advisory |

| FTSE Russell | UK | Index licensing |

| Bloomberg ESG | US | Terminal integration |

| Vigeo Eiris | FR | Green bond SPO |

| RepRisk | CH | News/NGO-based outside-in |

| ISS-oekom | DE | German/EU market |

Chapter 10 · SASB to ISSB IFRS S1/S2 — A Global Baseline

SASB (Sustainability Accounting Standards Board) was founded in the US in 2011 and built 77 industry-specific materiality standards. In 2021 it was absorbed into the IFRS Foundation, and the ISSB (International Sustainability Standards Board) was launched.

The ISSB issued two standards in June 2023, effective from 2024:

- **IFRS S1 — General Requirements for Disclosure of Sustainability-related Financial Information**: general disclosure requirements for all industries.

- **IFRS S2 — Climate-related Disclosures**: climate disclosure that absorbs TCFD.

IFRS S2 mandates **Scope 1/2/3 emissions disclosure**, **scenario analysis**, a **transition plan**, and **risk and opportunity assessment**. SASB industry standards remain as industry-specific guidance.

IFRS S1/S2 disclosure items (simplified structure)

governance:

- board_oversight

- management_responsibility

strategy:

- climate_risks_opportunities

- business_model_impact

- transition_plan

- scenario_analysis

risk_management:

- identification_assessment

- integration_into_erm

metrics_and_targets:

- scope1_emissions: tCO2e

- scope2_emissions: tCO2e_location_and_market_based

- scope3_emissions:

categories: [purchased_goods_services, capital_goods, fuel_and_energy, upstream_transport, waste, business_travel, employee_commuting, upstream_leased, downstream_transport, processing, use_of_sold_products, end_of_life, downstream_leased, franchises, investments]

- climate_targets

- capital_deployment

The ISSB is working on additional standards in 2024-2025 covering biodiversity, human capital, and more.

Chapter 11 · TCFD — The Starting Point for Climate Disclosure

The TCFD (Task Force on Climate-related Financial Disclosures) was created in 2015 by the G20 Financial Stability Board, releasing its recommendations in 2017. Its four areas (Governance, Strategy, Risk Management, Metrics and Targets) became the standard structure.

With IFRS S2 absorbing TCFD, the TCFD was officially disbanded in 2024, and monitoring authority moved to the IFRS Foundation. Even so, "TCFD" still functions as a brand in the market. Japan, the UK, New Zealand, and Canada have mandated TCFD-aligned disclosures, and the Korea Exchange ran ESG guidance referencing TCFD recommendations.

Key recommendations:

- Assess climate risks separately over short, medium, and long-term horizons.

- Cover both transition risks (policy, technology, market, reputation) and physical risks (acute, chronic).

- Recommend multi-scenario analysis, including a 2-degree scenario.

Chapter 12 · CSRD — The EU's Mandatory Disclosure Arrow

CSRD (Corporate Sustainability Reporting Directive) is the EU's non-financial disclosure mandate, phased in from 2024. It succeeds the NFRD (Non-Financial Reporting Directive, 2014) and has a much broader scope.

Phase-in timeline:

| Fiscal year | Scope |

| --- | --- |

| 2024 | Large companies and listed firms already under NFRD (about 11,700 entities) |

| 2025 | Firms meeting any two of 250+ employees, 50M EUR+ revenue, 25M EUR+ assets |

| 2026 | Listed SMEs |

| 2028 | Non-EU parents with 150M EUR+ EU revenue |

The standard is the **ESRS (European Sustainability Reporting Standards)**, drafted by EFRAG and adopted by the European Commission. ESRS is interoperable with the ISSB but requires **double materiality** (financial materiality plus impact materiality), so its scope is broader than the ISSB's (financial-only).

CSRD mandates **external assurance (limited assurance)** with a path to upgrading to reasonable assurance. A new assurance market opened — Big Four audit firms and ESG consultancies absorbed talent at scale.

Chapter 13 · Scope 1/2/3 Emissions — The Practical Computation

Scope classification was created by the GHG Protocol (2001). It has become the de facto global standard, adopted by IFRS S2, CSRD, and TCFD alike.

- **Scope 1**: direct emissions from facilities owned or controlled by the company (combustion, processes, vehicles).

- **Scope 2**: indirect emissions from purchased electricity, heat, and steam (report both location-based and market-based).

- **Scope 3**: other indirect emissions across the value chain — 15 categories (GHG Protocol Scope 3 Standard).

Separating `<3 scope emissions` accurately is foundational to disclosure credibility; Scope 3 has the lowest data availability and the largest estimation error.

Scope 1/2/3 calculation (activity data x emission factor)

def calc_scope1(stationary_combustion_mwh, mobile_combustion_l, emission_factors):

"""Direct emissions — kgCO2e/MWh, kgCO2e/L"""

sc = stationary_combustion_mwh * emission_factors["stationary_kgco2e_per_mwh"]

mc = mobile_combustion_l * emission_factors["mobile_kgco2e_per_l"]

return (sc + mc) / 1000 # tCO2e

def calc_scope2(purchased_electricity_mwh, location_factor, market_factor):

"""location-based: grid average. market-based: contracted clean energy reflected."""

loc = purchased_electricity_mwh * location_factor / 1000

mkt = purchased_electricity_mwh * market_factor / 1000

return {"location_based_tco2e": loc, "market_based_tco2e": mkt}

Scope 3 — each of 15 categories is its own model

SCOPE3_CATEGORIES = [

"1_purchased_goods_services",

"2_capital_goods",

"3_fuel_energy_not_in_1_2",

"4_upstream_transport_distribution",

"5_waste_in_operations",

"6_business_travel",

"7_employee_commuting",

"8_upstream_leased_assets",

"9_downstream_transport_distribution",

"10_processing_of_sold_products",

"11_use_of_sold_products",

"12_end_of_life_treatment",

"13_downstream_leased_assets",

"14_franchises",

"15_investments",

]

def calc_scope3_cat11(units_sold, lifetime_emissions_per_unit_kgco2e):

"""Use phase of sold products — the most divergent item between EV and ICE."""

return units_sold * lifetime_emissions_per_unit_kgco2e / 1000

For banks and asset managers, Scope 3 Category 15 (investments) emissions are called **financed emissions**, and PCAF (Partnership for Carbon Accounting Financials) is the de facto global standard.

Chapter 14 · Green Bonds and SLLs — The Reality of Transition Financing

The green finance market crossed cumulative issuance of `$3T green bond market` by 2024. The main product set:

- **Green Bond**: use of proceeds restricted to green projects.

- **Social Bond**: social projects.

- **Sustainability Bond**: green plus social combined.

- **Sustainability-Linked Loan (SLL) / Bond (SLB)**: the coupon flexes based on KPI achievement, not on use of proceeds.

- **Transition Bond**: financing for transition in hard-to-abate sectors.

ICMA Green Bond Principles, Climate Bonds Initiative (CBI) certification, and EU Taxonomy alignment checks form the certification backbone. The big suppliers of Second-Party Opinions (SPO) are Sustainalytics, S&P Global, Moody's, and Vigeo Eiris.

How an SLL works:

SLL structure

1) Borrower sets a KPI (e.g., Scope 1+2 emissions -30% by 2030)

2) Annual progress assessment

3) KPI met -> margin step-down (-5 to -25 bp)

4) KPI missed -> margin step-up (+5 to +25 bp)

5) Third-party assurance required

To prevent KPIs from becoming marketing fluff (washing), ICMA Sustainability-Linked Bond Principles require materiality, ambition, and measurability of KPIs.

Chapter 15 · ESG-Weighted Indices — From Scores to Portfolios

There are two main ways to turn ESG scores into index weights.

1. **Tilt / Score-Weighted**: multiply market cap by the ESG score to adjust weights — keeps sector and country exposure while overweighting ESG leaders.

2. **Best-in-Class / Exclusion**: drop the lowest-scoring firms within each sector. Can be combined with universal exclusions (weapons, tobacco, fossil fuels).

ESG-tilt index weight construction — market cap + score

def esg_tilt_weights(universe_df, score_col="msci_industry_adj", strength=1.0):

"""

universe_df: columns = ["ticker", "mcap", "industry", score_col]

strength: 0 = pure cap, 1 = score emphasis, 2 = strong score weighting

"""

df = universe_df.copy()

z-score within industry

df["z"] = df.groupby("industry")[score_col].transform(

lambda s: (s - s.mean()) / (s.std(ddof=0) + 1e-9)

)

df["tilt"] = np.exp(strength * df["z"])

df["w_raw"] = df["mcap"] * df["tilt"]

df["weight"] = df["w_raw"] / df["w_raw"].sum()

return df[["ticker", "industry", "weight"]]

Industry-neutrality constraint — pin sector weights to the parent benchmark

def neutralize_industry(weighted_df, benchmark_industry_weights):

"""Pin per-industry weight to the benchmark, redistribute residuals proportionally within."""

out = weighted_df.copy()

for ind, target_w in benchmark_industry_weights.items():

mask = out["industry"] == ind

ind_sum = out.loc[mask, "weight"].sum()

if ind_sum > 0:

out.loc[mask, "weight"] *= target_w / ind_sum

return out

This weight construction is the core logic of ESG ETFs such as iShares MSCI USA ESG Aware and Vanguard ESG U.S. Stock ETF.

Chapter 16 · ESG ETFs — iShares, Vanguard, DWS, State Street

Representative US ESG ETFs:

| --- | --- | --- | --- | --- |

| DSI | iShares | MSCI KLD 400 Social | 0.25% | Mid |

A late-2020s shift: expense ratios are now close to vanilla passive. ESG has moved from "premium product" to "standard option." That said, anti-ESG politics and asset withdrawals from BlackRock by some US states (Texas, Florida, etc.) have made flows lumpy.

Chapter 17 · Greenwashing — SEC and FCA Enforcement

The SEC strengthened guidance on the **Investment Company Act Rule 35d-1 (Names Rule)** for ESG funds in May 2022, and in 2023 levied penalties on BNY Mellon ($1.5M), Goldman Sachs ($4M), and DWS (over $19M, joint US-Germany settlement). The core requirement: if a fund's name contains "ESG" or "sustainable," at least 80% of assets must meet the relevant criteria.

SEC greenwashing enforcement pattern

1) Check the gap between fund name and actual portfolio ESG scores

2) Compare Form ADV disclosures to actual operations

3) Demand evidence that ESG integration actually drove decisions

4) Scrutinize ambiguous marketing claims

5) Settlement plus mandated remediation

The UK FCA introduced **Sustainability Disclosure Requirements (SDR) and an investment labels regime** in 2023, standardizing fund labels into four categories (Improvers, Focus, Impact, Mixed Goals). The EU operates SFDR Article 6/8/9 categorization alongside a separate labeling rule (SFDR Level 2).

Chapter 18 · GPIF — Japan's Model for ESG Passive Investing

GPIF (Government Pension Investment Fund) is Japan's public pension manager, with `$1.6T AUM` — the world's largest single fund. It adopted ESG indices in 2017 and extended ESG integration in 2020 across all five asset classes (domestic equities, foreign equities, domestic bonds, foreign bonds, alternatives).

ESG indices adopted by GPIF:

- MSCI Japan ESG Select Leaders Index

- MSCI Japan Empowering Women (WIN) Index

- FTSE Blossom Japan Index

- FTSE Blossom Japan Sector Relative Index

- S&P/JPX Carbon Efficient Index Series

- Morningstar Gender Diversity Index

GPIF's ESG strategy is the **passive / universal owner** model. As a giant passive owner holding the whole market, reducing market-wide systemic risk (climate, governance) is directly tied to its own returns. It exerts influence by enforcing stewardship code compliance, evaluating outsourced manager voting, and mandating engagement reporting.

Chapter 19 · Japan's ESG Market — JPX-Nikkei 400, Rakuten, MSCI Japan

The **JPX-Nikkei 400 Index**, co-developed by JPX and Nikkei, selects 400 stocks based on ROE, operating profit, and market cap, with governance criteria — a "stewardship index." Launched in 2014 and adopted by GPIF, it became the market standard. In 2023 an ESG-extended version was launched separately.

Rakuten Securities and SBI Securities have strengthened their ESG ETF line-ups, and ETFs tracking MSCI Japan ESG, MSCI Japan ESG Universal, and MSCI Japan Empowering Women (WIN) indices are popular in the Japanese retail market. The **Corporate Governance Code** (introduced 2015, revised 2018/2021/2024) and the **Stewardship Code** form the two pillars.

Japan's ESG is driven by a tripod of GPIF, the FSA, and the Tokyo Stock Exchange. The 2023 TSE push for capital efficiency improvements at companies with P/B below 1 ("the P/B 1x campaign") affected the ESG-G axis of the market.

Chapter 20 · Korea's ESG Market — KCGS, Sustinvest, KDB

**KCGS (Korea ESG Standards Institute, formerly Korea Corporate Governance Service)** was founded in 1992 and is Korea's oldest ESG rating body. It publishes annual ESG grades (S, A+, A, B+, B, C, D) for listed companies and offers proxy advisory and stewardship consulting. **Sustinvest** (founded 2006) is the other major private ESG rater alongside KCGS.

The Korea Exchange (KRX) operates KRX ESG Leaders 150, KRX Governance Leaders 100, KRX Eco Leaders 100, and KRX ESG Socially Responsible Investment (SRI) indices.

Korea's mandatory ESG disclosure roadmap (announced 2024):

| Timing | Scope |

| --- | --- |

| 2026 | KOSPI-listed companies with assets above 2 trillion KRW |

| 2030 | KOSPI-listed companies with assets above 500 billion KRW |

| 2032 | All KOSPI listings |

The standard is interoperable with ISSB IFRS S1/S2 plus Korea-specific items (governance, board diversity, etc.). **KDB green bonds** — KDB issued Korea's first green bond in 2018 and is a major supplier of transition finance, with KHFC and Eximbank Korea also active in green/social bond issuance.

Chapter 21 · Korean ESG ETFs and Pension Funds — NPS, TPF, KIC

The National Pension Service (NPS) announced ESG integration principles in 2022 and integrates ESG assessments across domestic equities, foreign equities, and bonds. NPS's active proxy voting has become a major engine of governance change in Korean listed companies. In 2024-2025 statistics, NPS voted against management on roughly 15% of agenda items.

Representative Korean ESG ETFs:

- TIGER MSCI Korea ESG Leaders (Mirae Asset Asset Management)

- KODEX MSCI Korea ESG Universal (Samsung Asset Management)

- HANARO MSCI Korea ESG (NH-Amundi)

- KOSEF MSCI Korea ESG (Kiwoom Asset Management)

These ETFs track MSCI Korea ESG series with expense ratios of 0.2-0.4%. The Teachers' Pension Fund (TPF), the Government Employees Pension Service (GEPS), and KIC (Korea Investment Corporation) also allocate part of their assets to ESG index/active strategies.

Chapter 22 · ESG Data Pipeline — How It Flows In and Out

From an asset manager's standpoint, the general ESG data flow:

[Source data]

├─ Corporate disclosures (annual report, sustainability report, CDP)

├─ Regulatory filings (10-K ESG section, CSRD ESRS, ISSB S1/S2)

├─ Assurance data (external audit reports, verification certificates)

├─ News / NGO (Bloomberg, Reuters, RepRisk)

└─ Satellite / IoT (Trucost environmental impact, Climate TRACE emissions)

[Provider integration]

├─ MSCI / Sustainalytics / S&P / Refinitiv / ISS / FTSE / Bloomberg / RepRisk

└─ KCGS / Sustinvest / GPIF indices / JPX-Nikkei 400

[Asset manager data mart]

├─ Stock-level ESG scores with time series

├─ Controversy signals

├─ Scope 1/2/3 emissions + financed emissions

└─ Scenario analysis (1.5C / 2C / NDC)

[Portfolio construction]

├─ ESG-tilt / Best-in-class / Exclusion

├─ Climate Transition / Paris-Aligned Benchmark

└─ Impact / Thematic

[Reporting]

├─ TCFD / IFRS S2 / CSRD

├─ SFDR Article 6 / 8 / 9

└─ Korea ESG disclosure / Japan SSBJ

PCAF's financed emissions methodology is the de facto standard for banks' and asset managers' Scope 3 Category 15 calculations.

Chapter 23 · Comparative View — US/EU/KR/JP Regulatory Matrix

| --- | --- | --- | --- | --- |

Chapter 24 · Operating Checklist — Before Launching an ESG Integration Fund

[ ] Fund name and marketing language compliant with SEC Names Rule / SFDR / FCA SDR labels

[ ] Document which ESG data providers and methodologies are used in the investment policy

[ ] Clarify whether the model is integration, screening, or thematic

[ ] Justify the benchmark choice (market index, ESG index, Paris-Aligned)

[ ] Specify Scope 1/2/3 and financed emissions methodology (PCAF)

[ ] Disclose engagement and proxy voting policy

[ ] Third-party assurance to prevent greenwashing

[ ] CSRD / ISSB S1/S2 reporting alignment

[ ] Add KCGS / SSBJ / JPX-Nikkei 400 data when expanding into Korea/Japan

[ ] Secure ESG training and certification for the team (CFA ESG, GARP SCR, etc.)

ESG fund operations are gradually being absorbed into standard fund operations — the direction is for ESG data to be handled routinely by every portfolio manager, not a separate ESG team.

References

- MSCI ESG Ratings — [https://www.msci.com/our-solutions/esg-investing/esg-ratings](https://www.msci.com/our-solutions/esg-investing/esg-ratings)

- Sustainalytics (Morningstar) — [https://www.sustainalytics.com/](https://www.sustainalytics.com/)

- S&P Global ESG Scores — [https://www.spglobal.com/esg/](https://www.spglobal.com/esg/)

- LSEG Refinitiv ESG — [https://www.lseg.com/en/data-analytics/sustainable-finance](https://www.lseg.com/en/data-analytics/sustainable-finance)

- ISS ESG — [https://www.issgovernance.com/esg/](https://www.issgovernance.com/esg/)

- FTSE Russell ESG — [https://www.ftserussell.com/products/sustainability-and-esg](https://www.ftserussell.com/products/sustainability-and-esg)

- Bloomberg ESG — [https://www.bloomberg.com/professional/products/sustainable-finance/](https://www.bloomberg.com/professional/products/sustainable-finance/)

- Moody's ESG (Vigeo Eiris) — [https://esg.moodys.io/](https://esg.moodys.io/)

- RepRisk — [https://www.reprisk.com/](https://www.reprisk.com/)

- IFRS Foundation / ISSB — [https://www.ifrs.org/groups/international-sustainability-standards-board/](https://www.ifrs.org/groups/international-sustainability-standards-board/)

- IFRS S1/S2 Standards — [https://www.ifrs.org/issued-standards/ifrs-sustainability-standards-navigator/](https://www.ifrs.org/issued-standards/ifrs-sustainability-standards-navigator/)

- TCFD Recommendations — [https://www.fsb-tcfd.org/](https://www.fsb-tcfd.org/)

- EU CSRD / EFRAG ESRS — [https://www.efrag.org/](https://www.efrag.org/)

- SEC Climate Disclosure Rule — [https://www.sec.gov/news/press-release/2024-31](https://www.sec.gov/news/press-release/2024-31)

- FCA Sustainability Disclosure Requirements — [https://www.fca.org.uk/firms/climate-change-sustainable-finance](https://www.fca.org.uk/firms/climate-change-sustainable-finance)

- GHG Protocol — [https://ghgprotocol.org/](https://ghgprotocol.org/)

- PCAF (Partnership for Carbon Accounting Financials) — [https://carbonaccountingfinancials.com/](https://carbonaccountingfinancials.com/)

- ICMA Green Bond Principles — [https://www.icmagroup.org/sustainable-finance/the-principles-guidelines-and-handbooks/](https://www.icmagroup.org/sustainable-finance/the-principles-guidelines-and-handbooks/)

- Climate Bonds Initiative — [https://www.climatebonds.net/](https://www.climatebonds.net/)

- GPIF ESG — [https://www.gpif.go.jp/en/investment/esg/](https://www.gpif.go.jp/en/investment/esg/)

- JPX-Nikkei 400 — [https://www.jpx.co.jp/english/markets/indices/jpx-nikkei400/](https://www.jpx.co.jp/english/markets/indices/jpx-nikkei400/)

- KCGS (Korea ESG Standards Institute) — [https://www.cgs.or.kr/](https://www.cgs.or.kr/)

- Sustinvest — [https://www.sustinvest.com/](https://www.sustinvest.com/)

- KRX ESG — [https://esg.krx.co.kr/](https://esg.krx.co.kr/)

- KDB Green Bonds — [https://www.kdb.co.kr/](https://www.kdb.co.kr/)