Sustainability Report

Both — and increasingly, the two run in parallel. GRI Standards 2021 is the world’s most widely adopted voluntary sustainability framework, with the three-layer Universal / Sector / Topic architecture and an impact-materiality anchor (most significant impacts on economy, environment, and people). IFRS S1 + S2 from the ISSB (effective 1 January 2024) anchor in financial-materiality (substantively affects entity value creation) and incorporate the TCFD four-pillar climate architecture.

Thai SEC has signalled phased adoption of IFRS S1/S2 under ongoing consultation tracking the global ISSB convergence track. In the meantime, most mature Thai reporters elect dual-framework alignment — GRI 2021 as the impact-lens spine for the standalone report, with IFRS S1/S2 narrative satisfying the financial-materiality lens for investor audiences and ratings inputs.

Bench handles the dual-framework architecture as one terminology system — same materiality matrix running double-materiality (impact + financial), same metric definitions, same target architecture, with framework-specific narrative tailored to each disclosure track. The 56-1 One Report ESG section, the standalone report, the CDP submission, and the DJSI / CSA response all reconcile to the same source of truth.

The SEC 56-1 One Report (effective FY2021) integrates the sustainability disclosure into mandatory annual reporting for SET-listed companies — the ESG section sits alongside business overview, MD&A, corporate governance, and financial statements. The standalone sustainability report is a voluntary deeper-disclosure instrument, typically published Q2/Q3 following the 56-1 One Report.

The two are not redundant:

• 56-1 One Report ESG section — SEC-filed authoritative source, compliance-track, condensed, drives SET ESG Ratings scoring
• Standalone report — voluntary, depth-track, GRI-aligned narrative, sometimes ISAE 3000 assured, drives global ratings (DJSI, CDP, MSCI) and stakeholder communication

Bench architecture treats both as one terminology system with cross-deliverable reconciliation built in — same materiality matrix, same metric definitions, same governance narrative, same target language. Drift between the 56-1 ESG section and the standalone report is a procurement-grade defect, not a stylistic variation; ratings analysts and investors read both and flag inconsistency.

Single materiality is the financial-materiality-only stance — material topics are those that substantively affect enterprise value creation (the IFRS S1 anchor). Double materiality is the GRI 2021 anchor — material topics are those that reflect the organisation’s most significant impacts on economy, environment, and people or that substantively affect enterprise value. Double materiality is the EU CSRD lineage and is increasingly the global expectation for mature reporters.

In the Thai market, most listed reporters elect double materiality aligned to GRI 2021 with parallel narrative satisfying IFRS S1’s financial-materiality lens. The methodology disclosure is itself a required disclosure under GRI 3-2 and IFRS S1 §C.7 — reporters must explain how material topics were identified, how stakeholders were engaged, and how the materiality matrix was constructed.

Bench operates the materiality methodology with full bilingual narrative discipline — stakeholder survey questions, focus-group transcripts, expert-interview summaries, sector-peer benchmarking, and matrix outputs all paired in Thai and English. Materiality refresh cycles typically run 2-3 years; the bench supports the refresh project as discrete engagement or as part of the annual panel.

GHG emissions disclosure runs under the GHG Protocol Corporate Standard — Scope 1 direct emissions from owned or controlled sources; Scope 2 indirect from purchased electricity / steam / heat / cooling, disclosed both location-based and market-based per the Scope 2 Guidance; Scope 3 across the fifteen GHG Protocol categories from purchased goods through use of sold products to investments.

In Thailand, the TGO Carbon Footprint for Organisation (CFO) programme operated by Thailand Greenhouse Gas Management Organisation provides verified third-party certification of organisational footprint. TGO also operates the T-VER voluntary emission-reduction programme generating Thai voluntary carbon credits.

Bench operates GHG inventory bilingual handling with:

• Methodology terminology lock — TGO CFO methodology references preserved precisely across Thai and English working copies
• Calculation worksheets paired — bilingual data tables with consistent emission factors, activity data labels, and unit conventions
• Verifier-facing consistency — bilingual data lineage so TGO-accredited verifiers can re-perform calculations from either Thai or English source
• Cross-reference to SBTi commitment — same baseline, same scope, same target year, same units across SBTi letter, verification statement, sustainability narrative, CDP submission, and IFRS S2 disclosure

Sustainability assurance runs under ISAE 3000 (Revised) — IAASB’s Assurance Engagements Other than Audits or Reviews of Historical Financial Information — as the default standard for non-financial assurance, and ISAE 3410 — Assurance Engagements on Greenhouse Gas Statements — as the GHG-specific variant. The Thai equivalent SAE (Standards on Assurance Engagements) standards run through FAP-registered assurance firms.

Both standards run in two engagement levels:

• Limited assurance — negative-form conclusion (“nothing has come to our attention” language), shallower procedures, the typical first-time Thai-market practice
• Reasonable assurance — positive-form conclusion (“the disclosure is fairly stated”), deeper procedures, increasingly demanded by mature reporters and pushed by the EU CSRD lift

Bench architecture supports assurance-readiness with bilingual data lineage from source records through calculation worksheets through narrative — every metric in the report reconciles to source records that an assurance provider can re-perform. Where the assurance firm is a Thai affiliate of a global network with partner review at HQ, bilingual handling materially reduces partner-review friction and accelerates clearance of management-letter points.

Multi-year baseline integrity is a procurement-grade quality measure in sustainability reporting — ratings analysts, investors, and assurance firms all read year-on-year and flag unexplained drift as a concern. Restatement of prior-year baselines is permitted but must be disclosed with explicit methodology under both GRI Standards 2021 (GRI 2-4) and IFRS S2’s general restatement provisions.

Bench operates multi-year continuity through:

• Multi-year glossary custodianship — terminology, defined-term, and methodology references locked across reporting cycles
• Baseline-year disclosure — explicit SBTi baseline year (typically 2018-2020 for Thai reporters), TGO CFO baseline, scenario-analysis baseline
• Restatement methodology disclosure — explicit narrative on what was restated, why, by how much, and with what impact on prior-year metrics
• Prior-year reconciliation tables — bilingual data dictionary with prior-year figures, restated figures, and variance commentary

Where the engagement transitions between bench tenures, the bilingual glossary and prior-year terminology lock are handed over as a procurement-grade artefact, not as informal continuity.

SET ESG Ratings (rebranded 2023 from the former Thailand Sustainability Investment — THSI — list) is the Thai-domiciled scoring overlay operated by the Stock Exchange of Thailand with AAA / AA / A / BBB tier disclosure. The methodology draws primarily from the 56-1 One Report sustainability section, the standalone sustainability disclosure, and a supplementary SET-administered questionnaire covering environment, social, and governance dimensions.

Procurement implication — the SET ESG Ratings scoring is materially sensitive to the 56-1 One Report ESG section’s clarity, specificity, and metric-target rigour. Vague or boilerplate narrative loses scoring points; specific quantitative disclosure (Scope 1/2/3 with year-on-year comparators, SBTi-aligned targets with progress tracking, governance specificity, materiality methodology) drives ratings improvement.

Bench architecture supports SET ESG Ratings preparation as a derived deliverable from the master sustainability disclosure — same metrics, same target language, same governance description, with ratings-questionnaire response architecture built into the annual workflow rather than as ad-hoc post-publication scramble.

The UN-track sustainability narrative carries three connected disclosure architectures:

• UN Sustainable Development Goals (17 SDGs) — reporters map material topics and performance metrics against relevant SDG targets, with 169 sub-targets providing the underlying disclosure granularity
• UN Global Compact Communication on Progress (CoP) — annual signatory reporting against the Ten Principles (human rights, labour, environment, anti-corruption); the CoP digital platform launched 2023 replaced the legacy narrative format with structured questionnaire
• UN Guiding Principles on Business and Human Rights (UNGP) — the human-rights due diligence (HRDD) reporting architecture, covered separately under sub-page 03.5

Thai signatories submit the CoP through Global Compact Network Thailand. Bench operates the UN-track narrative bilingual with terminology lock to the standalone sustainability report and 56-1 One Report — same SDG mapping, same Ten Principles narrative, same HRDD disclosure across all artefacts. The CoP questionnaire-format response is treated as a derived deliverable from the master disclosure, not as a separate drafting cycle.

Climate scenario analysis is a required disclosure under IFRS S2 (and the legacy TCFD strategy pillar) — reporters disclose how their strategy is resilient under multiple climate scenarios. Typical disclosure runs three scenarios:

• 1.5°C-aligned pathway — IEA Net Zero Emissions by 2050 scenario, IPCC SR1.5 scenarios, Paris-Agreement-aligned
• Well-below 2°C pathway — IEA Announced Pledges, NDC-aligned trajectories
• 3-4°C / Current Policies pathway — physical-risk-dominant, current-policies trajectory

The scenario analysis carries two parallel narratives — transition-risk narrative (carbon pricing, regulatory tightening, technology shift, consumer preference) and physical-risk narrative (acute hazards, chronic stresses, value-chain disruption). Both narratives translate from quantitative scenario inputs into qualitative business-impact discussion with strategic-response implications.

Bench operates climate-scenario bilingual handling with terminology lock across IEA / IPCC / IPSF reference frameworks, scenario-naming conventions (NGFS for financial-sector reporters), and physical-risk hazard taxonomy. The scenario-analysis disclosure reconciles to TGO CFO inventory, SBTi-aligned targets, and the broader IFRS S2 governance, strategy, risk management, metrics & targets architecture.

Three verification routes operate in parallel:

• (1) Standards-body verification — ISO 17100 (translation services quality) and ISO 27001 (information security management) anchor the operational discipline. Both are independently auditable and procurement-team-verifiable through certificate disclosure.
• (2) Structured procurement reference disclosure — under mutual NDA, scoped to seven sustainability document categories, GRI 2021 + IFRS S1/S2 + SASB + TCFD framework fluency, 56-1 One Report ESG integration, TGO CFO methodology custody, multi-year glossary continuity, ratings-questionnaire alignment (DJSI, CDP, MSCI, SET ESG), assurance-readiness across ISAE 3000 / 3410 / FAP SAE, and materiality methodology track record.
• (3) Pre-engagement scoping call — 30-minute call within 2 business days of mutual NDA, covering framework alignment, disclosure-cadence priorities, materiality matrix status, GHG inventory readiness, and multi-deliverable orchestration.

For annual sustainability-disclosure panel placement, the bench supplies a 10-component capability brief within 3-5 business days of structured RFP — covering bench composition, framework methodology (GRI / IFRS S1+S2 / SASB / TCFD / SDGs / UNGC / UNGP), TGO CFO + SBTi alignment discipline, multi-deliverable orchestration architecture, 56-1 One Report integration, materiality methodology, assurance-readiness pathway, sector experience, ISO alignment, conflicts and confidentiality, and framework rate card.