Tor Chor 55/2563 is SEC Thailand Notification of the Capital Market Supervisory Board No. ThorChor. 55/2563 Re: Specification of Information Disclosure for One Report. Issued in 2020, it consolidated the prior Form 56-1 (annual disclosure form) and the corporate annual report into a single mandatory filing — the “One Report” — effective for fiscal years ending 31 December 2021 onwards.

All 868 SET-listed companies must file 56-1 One Report annually, within 3 months of fiscal year end. For most Thai companies (Jan–Dec fiscal year), this means filing by 31 March. The notification specifies the mandatory content, structure, filing language, and filing format.

The ESG content sits in Part 1, Section 3 — “Sustainability Business Development” — and has six sub-sections: 3.1 Sustainability Policy & Strategy (board-approved policy, governance structure, link to corporate strategy); 3.2 Materiality & Stakeholders (materiality matrix, stakeholder identification, engagement summary); 3.3 Environmental Disclosure (GHG Scope 1/2/3, energy, water, waste, biodiversity, climate); 3.4 Social Disclosure (employment, OHS, training, diversity, human rights, community, supply chain social); 3.5 Governance & Ethics (anti-corruption, business ethics, whistleblowing, tax transparency); 3.6 Targets & Progress (forward-looking targets, prior-year tracking).

Total page count for Part 1.3 varies by sector and disclosure scope — typically 15–40 pages each language for SET-listed companies, with heavy-disclosure sectors (energy, industrials) at the upper end.

Two regulatory and methodological shifts converge on the 2026 cycle. First: the eleven-year SET ESG Ratings programme (Thai domestic methodology, questionnaire-based) ends. FTSE Russell methodology — the LSEG-owned global standard with $15.9 trillion of institutional capital benchmarked to its indexes — now applies to all 868 SET-listed companies. FTSE does not send questionnaires; the methodology scores public disclosure as written. The 56-1 Part 1.3 disclosure is the input.

Second: IFRS S2 climate disclosure is becoming mandatory under the Thai SEC IFRS Sustainability Disclosure Standards Roadmap. §22 climate resilience and §22(a)(b) scenario analysis become required content for the climate disclosure portion of Part 1.3. Together these shifts mean the Part 1.3 section that worked under the prior regime now needs FTSE-calibrated drafting + IFRS S2-aligned climate disclosure. FTSE Readiness service → · IFRS S2 service →

FTSE Russell methodology scores public disclosure as written — including the Thai version, the English version, and any other language version a company publishes. Language drift between the Thai and English versions costs scoring points because indicator language is assessed against each disclosure independently.

The conventional Bangkok model — Thai drafted by a consulting firm, English produced by a translation vendor downstream — introduces drift. Concepts like “double materiality,” “scenario analysis,” “physical risk,” “transition plan” land differently in each version when translation is downstream of consulting. Othello’s bilingual lockstep approach drafts both versions in parallel from the FTSE indicator framework — preventing drift at the source.

For some SET-listed companies, the 56-1 Part 1.3 ESG section is the company’s primary sustainability disclosure — they do not publish a separate standalone sustainability report. This is acceptable under Tor Chor 55/2563 and is common for smaller-cap SET-listed companies.

For larger SET-listed companies — particularly those with sustainable finance instruments (green bonds, SLBs), foreign institutional shareholders, or rating-agency engagement (CDP, DJSI, MSCI) — a standalone sustainability report is recommended in addition to the 56-1 Part 1.3 section. The standalone report typically runs 60–180 pages and provides deeper disclosure than the SEC-mandated minimum. Othello typically drafts both in parallel from the same bilingual termbase. Bilingual Sustainability Reporting service →

The 56-1 ESG section is integrated into the broader 56-1 master document — meaning Othello works alongside the annual report designer rather than producing a standalone artefact. The standard workflow: Othello produces final bilingual text in InDesign-compatible format (XML or styled DOCX); design agency typesets the master document with both Thai and English versions; Othello performs the designed-proof reading pass on the typeset PDF in both languages side-by-side; design agency applies final corrections.

Othello has prior coordination experience with multiple major Bangkok annual report design agencies. Specific terminology lock and figure/chart language conventions are pre-agreed with the designer in the December calibration phase to prevent design-stage language drift.

The SEC Thailand 31 March filing deadline is enforced. Late filing of 56-1 One Report or material non-compliance can result in: SEC administrative fines; SET trading suspensions; SEC public notification of the late filer (reputational impact); enforcement actions against responsible directors and executives under Securities and Exchange Act B.E. 2535 (1992) and Capital Market Supervisory Board notifications.

Beyond the regulatory consequences, late or poor-quality 56-1 ESG disclosure now directly affects the company’s FTSE Russell ESG score, which is read by institutional capital benchmarked to FTSE indexes globally. This sits alongside CDP, MSCI, Sustainalytics, and DJSI scoring — all of which use the published 56-1 as input source material. Othello’s standard engagement schedule is structured to land the bilingual ESG section in the design agency’s hands by mid-March, with adequate time for designed-proof and final corrections before the 31 March deadline.

First-time 56-1 ESG filers and companies transitioning from SET ESG Ratings to FTSE Russell methodology require an extended scoping phase. The standard 6-month cycle is extended to 9 months with an additional 8-week phase covering: FTSE Russell methodology training for internal teams; complete double-materiality assessment (GRI 3 / ESRS-aligned); KPI baseline data collection across environmental, social, and governance themes; selection of applicable frameworks (which sector standards apply, whether IFRS S2 §22 scenario analysis is in scope, whether AA1000AS assurance is planned); and internal governance structure for sustainability oversight (board sustainability committee, ESG reporting workflow, internal data ownership).

Year-one engagements price higher than year-two because the translation memory is built from scratch and the cross-framework mapping is fresh. Year-two unit costs typically drop 30–40% via TM leverage. Newly-listed SET companies and SET-listed subsidiaries graduating to standalone 56-1 filing are a common Othello engagement type.

Yes. Othello responds to formal procurement processes for 56-1 ESG drafting from SET-listed corporates and their procurement teams. Standard procurement requirements are met: ISO 17100:2015 certification, ATA + ATC accreditation, GDPR + PDPA compliance, mutual NDA from first email, documented Q1 reporting cycle capacity (2M+ words/month), and SET-listed engagement references available under mutual NDA at procurement stage. Additionally, the in-house specialist bench (AA1000AS, ISO 14064 Lead Auditor, GRI 2021 Trainer, IFRS S1/S2, TGO Auditor) is available for credential verification at procurement stage.

Standard RFP response is 3–5 business days from receipt — covering capability statement, references, capacity allocation, pricing structure, engagement timeline aligned to the 31 March SEC deadline, FTSE Russell methodology alignment approach, and cross-framework coverage (GRI, SASB, IFRS S1/S2). Quote response on engagement scoping is within one business hour of receipt of source files and signed NDA.