{"id":31280,"date":"2026-06-23T14:27:23","date_gmt":"2026-06-23T14:27:23","guid":{"rendered":"https:\/\/www.othellointernational.com\/?p=31280"},"modified":"2026-08-08T06:08:43","modified_gmt":"2026-08-08T06:08:43","slug":"gri-vs-sasb-vs-ifrs-s1-s2","status":"publish","type":"post","link":"https:\/\/www.othellointernational.com\/th\/gri-vs-sasb-vs-ifrs-s1-s2\/","title":{"rendered":"GRI vs SASB vs IFRS S1\/S2: ESG Frameworks Explained"},"content":{"rendered":"<!--OBG-CSS--><style>\n.obg{--r:#ED4036;--r1:#FF5046;--gold:#e0a93a;--ok:#3ddc84;--w:#fff;--w1:rgba(255,255,255,.85);--w2:rgba(255,255,255,.60);--w3:rgba(255,255,255,.42);--gl:rgba(255,255,255,.10);--card:linear-gradient(168deg,rgba(255,255,255,.055),rgba(255,255,255,.015));font-family:'Poppins',-apple-system,BlinkMacSystemFont,sans-serif;-webkit-box-sizing:border-box;box-sizing:border-box}\n.obg *,.obg *::before,.obg *::after{box-sizing:border-box}\n.obg{position:relative;margin:30px 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solid rgba(255,255,255,.1)!important;border-left:3px solid #ED4036!important;border-radius:14px!important;color:rgba(255,255,255,.85)!important}\n.oth-related p,.oth-related-reading p,.oth-related strong,.oth-related-reading strong,.oth-related b,.oth-related-reading b{color:#fff!important}\n.oth-related a,.oth-related-reading a{color:#FF5046!important}\n.oth-related li,.oth-related-reading li,.oth-related span,.oth-related-reading span{color:rgba(255,255,255,.85)!important}\n@media(max-width:640px){\n  .obg-toc ol{grid-template-columns:1fr}\n  .obg-quote p{font-size:19px}\n  .obg-band{padding:22px 20px}\n}\n<\/style><!--\/OBG-CSS-->\n\n\n<h1 class=\"wp-block-heading\"><\/h1>\n\n\n<p>GRI, SASB and IFRS S1\/S2 are the three ESG reporting frameworks Thai sustainability teams run into most often &mdash; and they are constantly confused for one another. The short version: they answer <strong>different questions<\/strong> for <strong>different audiences<\/strong>, and increasingly they are designed to work together rather than compete.<\/p>\n\n<div class=\"oig-band\"><div class=\"s\"><svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 3v18h18\"\/><path d=\"M7 14l3-3 3 3 5-6\"\/><\/svg><div class=\"v\">GRI<\/div><div class=\"l\">Impact lens<\/div><\/div><div class=\"s\"><svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><circle cx=\"12\" cy=\"12\" r=\"4\"\/><\/svg><div class=\"v\">SASB<\/div><div class=\"l\">Financial lens<\/div><\/div><div class=\"s\"><svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M12 2a15 15 0 010 20M12 2a15 15 0 000 20M3 12h18\"\/><circle cx=\"12\" cy=\"12\" r=\"9\"\/><\/svg><div class=\"v\">IFRS<span class=\"sm\">S1\/S2<\/span><\/div><div class=\"l\">Global baseline<\/div><\/div><div class=\"s\"><svg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"M9 12l2 2 4-4\"\/><\/svg><div class=\"v\">TCFD<\/div><div class=\"l\">\u0e01\u0e32\u0e23\u0e27\u0e34\u0e40\u0e04\u0e23\u0e32\u0e30\u0e2b\u0e4c\u0e2a\u0e16\u0e32\u0e19\u0e01\u0e32\u0e23\u0e13\u0e4c\u0e04\u0e27\u0e32\u0e21\u0e40\u0e2a\u0e35\u0e48\u0e22\u0e07\u0e14\u0e49\u0e32\u0e19\u0e2a\u0e20\u0e32\u0e1e\u0e20\u0e39\u0e21\u0e34\u0e2d\u0e32\u0e01\u0e32\u0e28<\/div><\/div><\/div>\n\n\n\n<!--OBG-G--><div class=\"obg obg-toc\"><div class=\"obg-lb\">What this guide covers<\/div><ol><li><a href=\"#the-quick-map\">The quick map<\/a><\/li><li><a href=\"#gri-impact-materiality\">GRI: impact materiality<\/a><\/li><li><a href=\"#sasb-financial-materiality-by-industry\">SASB: financial materiality, by industry<\/a><\/li><li><a href=\"#ifrs-s1-and-s2-the-issb-global-baseline\">IFRS S1 and S2: the ISSB global baseline<\/a><\/li><li><a href=\"#how-they-fit-together-double-materiality\">How they fit together (double materiality)<\/a><\/li><li><a href=\"#what-this-means-for-set-listed-thai-companies\">What this means for SET-listed Thai companies<\/a><\/li><li><a href=\"#which-framework-should-you-use\">Which framework should you use?<\/a><\/li><li><a href=\"#frequently-asked-questions\">Frequently asked questions<\/a><\/li><\/ol><\/div><!--\/OBG-G-->\n<h2 id=\"the-quick-map\">The quick map<\/h2>\n<ul><li><strong>GRI<\/strong> &mdash; reports your company&rsquo;s <em>impact on the world<\/em> (the economy, environment and people), for all stakeholders. This is &ldquo;impact materiality&rdquo;.<\/li><li><strong>SASB<\/strong> &mdash; reports the sustainability issues that are <em>financially material<\/em> to your industry, for investors. SASB Standards are now maintained by the ISSB and underpin IFRS S1.<\/li><li><strong>IFRS S1 &amp; S2<\/strong> &mdash; the ISSB&rsquo;s global baseline for <em>sustainability-related financial disclosure<\/em> (S1 general, S2 climate), again for investors.<\/li><\/ul>\n\n<div class=\"oig-quote\">Report to the framework your investors read \u2014 <em>then do it consistently.<\/em><\/div>\n\n\n\n<!--OBG-G--><div class=\"obg obg-quote\"><p>GRI, SASB and IFRS S1\/S2 are the three ESG reporting frameworks Thai sustainability teams run into most often &amp;mdash; and they are constantly confused for one another.<\/p><cite>GRI vs SASB vs IFRS S1\/S2: ESG Frameworks Explained<\/cite><\/div><!--\/OBG-G-->\n<h2 id=\"gri-impact-materiality\">GRI: impact materiality<\/h2>\n<p>\u0e01\u0e23\u0e30\u0e1a\u0e27\u0e19\u0e01\u0e32\u0e23\u0e23\u0e31\u0e1a\u0e23\u0e2d\u0e07\u0e19\u0e34\u0e15\u0e34\u0e01\u0e23\u0e13\u0e4c\u0e40\u0e2d\u0e01\u0e2a\u0e32\u0e23 <a href=\"https:\/\/www.othellointernational.com\/th\/gri\/\">GRI Standards<\/a> ask how your operations affect the outside world &mdash; emissions, water, labour practices, communities. The audience is broad: regulators, employees, communities and investors. GRI is the most widely used framework globally and is well established among Thai listed companies for the sustainability narrative in the 56-1 One Report.<\/p>\n\n<!--OBG-G--><div class=\"obg obg-tw\"><table class=\"obg-table\"><thead><tr><th><\/th><th class=\"\">GRI<\/th><th class=\"\">SASB<\/th><th class=\"hi\">IFRS S1\/S2<\/th><\/tr><\/thead><tbody><tr><th>Focus<\/th><td class=\"\">Impact on world<\/td><td class=\"\">Financially-material by sector<\/td><td class=\"hi\">Financial impact of sustainability<\/td><\/tr><tr><th>Audience<\/th><td class=\"\">All stakeholders<\/td><td class=\"\">Investors<\/td><td class=\"hi\">Investors \/ capital markets<\/td><\/tr><tr><th>Basis<\/th><td class=\"\">Universal + topic<\/td><td class=\"\">77 industry standards<\/td><td class=\"hi\">Global baseline (absorbs SASB, TCFD)<\/td><\/tr><tr><th>In Thailand<\/th><td class=\"\">Common in reports<\/td><td class=\"\">Feeds ISSB<\/td><td class=\"hi\"><b>TSRS<\/b> = the S1\/S2 adoption<\/td><\/tr><\/tbody><\/table><\/div><!--\/OBG-G-->\n<h2 id=\"sasb-financial-materiality-by-industry\">SASB: financial materiality, by industry<\/h2>\n<p>SASB takes the opposite lens: which sustainability issues are likely to affect <em>enterprise value<\/em> in your specific industry. Because it is industry-specific and investor-focused, SASB became the practical backbone for investor-grade ESG data &mdash; and the ISSB now maintains the SASB Standards and references them inside IFRS S1.<\/p>\n<h2 id=\"ifrs-s1-and-s2-the-issb-global-baseline\">IFRS S1 and S2: the ISSB global baseline<\/h2>\n<p><a href=\"https:\/\/www.othellointernational.com\/th\/ifrs-s1-s2\/\">IFRS S1 and S2<\/a> are the ISSB&rsquo;s standards for sustainability-related financial disclosure. S1 covers governance, strategy, risk management and metrics across all material sustainability topics; S2 is a deeper, TCFD-aligned climate standard. Both use financial materiality &mdash; what could reasonably affect the company&rsquo;s prospects and value.<\/p>\n<h2 id=\"how-they-fit-together-double-materiality\">How they fit together (double materiality)<\/h2>\n<p>GRI&rsquo;s outward, impact view and the ISSB&rsquo;s inward, financial view are two halves of &ldquo;double materiality&rdquo;. Used together they cover both how the world affects your business and how your business affects the world. GRI and the IFRS Foundation have issued joint guidance on using the GRI and ISSB Standards together, so reporting against one no longer means starting from scratch for the other.<\/p>\n<h2 id=\"what-this-means-for-set-listed-thai-companies\">What this means for SET-listed Thai companies<\/h2>\n<p>Thailand is phasing in IFRS S1\/S2, beginning with SET50 companies from 2027 and SET100 from 2028, while the SET moves to FTSE Russell ESG Scores in 2026 &mdash; an assessment built on <strong>publicly disclosed, largely English-language<\/strong> information. In practice most SET-listed companies will keep a GRI-based sustainability narrative and layer ISSB (IFRS S1\/S2) financial-materiality disclosures on top &mdash; and both need an accurate English version in the <a href=\"https:\/\/www.othellointernational.com\/th\/technical-translation\/annual-report-translation\/\">annual report \/ 56-1 One Report<\/a>.<\/p>\n<h2 id=\"which-framework-should-you-use\">Which framework should you use?<\/h2>\n<p>It is rarely either\/or. A typical Thai listed company reports its impacts with GRI, addresses investor-grade financial materiality with IFRS S1\/S2 (with SASB as the industry lens), and ensures every disclosure exists cleanly in both Thai and English. The goal is one coherent, bilingual sustainability story &mdash; not three disconnected reports.<\/p>\n<h2 id=\"frequently-asked-questions\">Frequently asked questions<\/h2>\n<h3>Is GRI being replaced by IFRS S1\/S2?<\/h3><p>No. GRI (impact materiality) and IFRS S1\/S2 (financial materiality) serve different audiences and are designed to be used together.<\/p>\n<h3>What happened to SASB?<\/h3><p>SASB Standards are now maintained by the ISSB and are referenced within IFRS S1 as industry-specific guidance.<\/p>\n<h3>Do Thai listed companies have to use IFRS S1\/S2?<\/h3><p>They are phasing in &mdash; SET50 from 2027 and SET100 from 2028 &mdash; so affected companies should prepare disclosures (and English translations) ahead of their year.<\/p>\n\n\n<!-- othello-seo:related -->\n<h2 id=\"related-esg-guides\">Related ESG guides<\/h2>\n<ul>\n  <li><a href=\"https:\/\/www.othellointernational.com\/th\/56-1-one-report-deadline-2026\/\">56-1 One Report Deadline 2026: Thailand Filing Dates &#038; Bilingual Requirements<\/a><\/li>\n  <li><a href=\"https:\/\/www.othellointernational.com\/th\/carbon-credits-thailand-t-ver-2026\/\">Carbon Credits in Thailand 2026: T-VER, Premium T-VER and What Corporates Need to Know<\/a><\/li>\n  <li><a href=\"https:\/\/www.othellointernational.com\/th\/what-is-esg-thai-companies\/\">What Is ESG? A Practical Guide for Thai Companies (2026)<\/a><\/li>\n  <li><a href=\"https:\/\/www.othellointernational.com\/th\/csrd-omnibus-thai-suppliers-2026\/\">CSRD After the Omnibus: What Thai Suppliers to EU Companies Actually Need to Provide (2026)<\/a><\/li>\n  <li><a href=\"https:\/\/www.othellointernational.com\/th\/cbam-thailand-exporters-2026\/\">CBAM in 2026: What Thai Exporters Must Do as the Definitive Phase Begins<\/a><\/li>\n<\/ul>\n\n\n<!-- othello-seo:services -->\n<h3>Related Othello services<\/h3>\n<ul>\n  <li><a href=\"https:\/\/www.othellointernational.com\/th\/ifrs-s1-s2\/\">IFRS S1\/S2<\/a><\/li>\n  <li><a href=\"https:\/\/www.othellointernational.com\/th\/tcfd-implementation\/\">\u0e01\u0e32\u0e23\u0e14\u0e33\u0e40\u0e19\u0e34\u0e19\u0e07\u0e32\u0e19\u0e15\u0e32\u0e21\u0e01\u0e23\u0e2d\u0e1a TCFD<\/a><\/li>\n  <li><a href=\"https:\/\/www.othellointernational.com\/th\/esg-advisory\/climate-ifrs-s2\/\">Climate &#038; IFRS S2 Disclosure<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"oth-playbook-cta wp-block-paragraph\" style=\"border-left:4px solid #EC3737;background:rgba(237,64,54,.06);padding:14px 18px;border-radius:4px;\">\ud83d\udcd8 <strong>Free resource:<\/strong> \u0e14\u0e39\u0e23\u0e32\u0e22\u0e25\u0e30\u0e40\u0e2d\u0e35\u0e22\u0e14 <a href=\"\/th\/esg-playbooks\/\">The FTSE 2026 Playbook Library<\/a> \u2014 Othello&#8217;s ESG disclosure playbook plus focused editions for Thai banks, energy, property, healthcare, technology and more.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"related-services-from-othello-international\">Related services from Othello International<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Othello International is a Bangkok-based bilingual (EN\u2194TH) technical translation and <a href=\"\/th\/esg-advisory\/\">\u0e07\u0e32\u0e19\u0e17\u0e35\u0e48\u0e1b\u0e23\u0e36\u0e01\u0e29\u0e32 ESG<\/a> firm. Related specialist services:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"\/th\/technical-translation\/esg-disclosure\/\">ESG disclosure translation<\/a> \u2014 IFRS S2, GRI, FTSE-ready<\/li><li><a href=\"\/th\/technical-translation\/esg-disclosure\/sustainability-reports\/\">sustainability report translation<\/a> \u2014 GRI, IFRS, bilingual<\/li><li><a href=\"\/th\/materiality-assessment\/\">materiality assessment<\/a> \u2014 double-materiality, rater-ready<\/li><\/ul>\n\n\n\n<div class=\"oth-related-reading\" style=\"border-top:2px solid #ED4036;margin-top:36px;padding-top:16px\">\n<p style=\"font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#ED4036;font-weight:700;margin:0 0 10px;font-family:monospace\">Related reading<\/p>\n<ul style=\"margin:0;padding-left:20px\"><li style=\"margin:0 0 8px\"><a href=\"\/th\/ifrs-s1-s2-thailand\/\"><\/a><\/li><li style=\"margin:0 0 8px\"><a href=\"\/th\/tcfd-to-ifrs-s2-thailand\/\"><\/a><\/li><li style=\"margin:0 0 8px\"><a href=\"\/th\/56-1-one-report-deadline-2026\/\"><\/a><\/li><\/ul>\n<\/div>\n\n\n\n<!--OBG-G--><div class=\"obg obg-band\"><h4>See what your English disclosure is scoring<\/h4><p>From 2026 FTSE Russell scores SET-listed companies from public English disclosure \u2014 no questionnaire. Run the free Gap Audit and find the points you are leaving on the table.<\/p><a class=\"obg-cta\" href=\"\/th\/ftse-disclosure-gap-audit\/\">\u0e17\u0e14\u0e25\u0e2d\u0e07\u0e43\u0e0a\u0e49 Gap Audit \u0e1f\u0e23\u0e35<\/a><\/div><!--\/OBG-G-->","protected":false},"excerpt":{"rendered":"<p>GRI, SASB and IFRS S1\/S2 explained for Thai companies\u2014impact vs financial materiality, how they fit together as double materiality, and what SET-listed firms should report and translate.<\/p>","protected":false},"author":19,"featured_media":32536,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_yoast_wpseo_title":"GRI vs SASB vs IFRS S1\/S2: ESG Frameworks Explained","_yoast_wpseo_metadesc":"GRI, SASB and IFRS S1\/S2 for Thai companies: impact vs financial materiality, how they fit together, and what SET-listed firms must report and translate.","_yoast_wpseo_focuskw":"GRI vs SASB vs IFRS","_yoast_wpseo_canonical":"","rank_math_title":"GRI vs SASB vs IFRS S1\/S2: ESG Frameworks Explained","rank_math_description":"GRI, SASB and IFRS S1\/S2 for Thai companies: impact vs financial materiality, how they fit together, and what SET-listed firms must report and translate.","rank_math_focus_keyword":"GRI vs SASB vs IFRS","rank_math_canonical_url":"","_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","rank_math_robots":["index"]},"categories":[116,1],"tags":[],"class_list":["post-31280","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-esg","category-translation-services"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.othellointernational.com\/wp-content\/uploads\/2026\/07\/gri-vs-sasb-vs-ifrs-s1-s2-cover-1.webp?fit=1200%2C630&ssl=1","_links":{"self":[{"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/posts\/31280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/comments?post=31280"}],"version-history":[{"count":15,"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/posts\/31280\/revisions"}],"predecessor-version":[{"id":33129,"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/posts\/31280\/revisions\/33129"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/media\/32536"}],"wp:attachment":[{"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/media?parent=31280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/categories?post=31280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.othellointernational.com\/th\/wp-json\/wp\/v2\/tags?post=31280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}